Apologizing for a Change of Plans | Learn Japanese in English

Sentence explanations

1. ごめん、予定を変えないといけないんだ。

   I'm sorry, I need to change our plan.

   ごめん

   sorry

   予定

   plan; schedule

   変えないといけないんだ

   need to change

   More detail

   ごめん is a casual way to say “I’m sorry.” It is commonly used when apologizing for an inconvenience or problem. A more formal form is すみません; ごめんなさい is also an apology, often sounding a little fuller than ごめん. 予定 means a planned arrangement, plan, or schedule. In this sentence, 予定を marks the plan as the object of the action: を identifies what will be changed. The translation specifies this as “our plan,” but the noun 予定 itself does not encode “our.” 変えないといけないんだ expresses “need to change” or “have to change.” The useful pattern is verb-negative form + といけない: 変える means “to change,” and its negative form is 変えない; 変えないといけない literally uses “if [one] does not change it, it will not do,” and functions as an obligation pattern meaning “must change” or “need to change.” This is different from simply saying 変えない, which means “do not change” or “will not change” depending on context. The final んだ is an explanatory, conversational ending. Here it presents the need to change the plan as the situation being explained. In more formal language, のです can serve a similar explanatory function, while んだ is casual. Together, 予定を変えないといけないんだ means “I need to change our plan”: 予定を is “the plan” as the object, and 変えないといけない says that changing it is necessary. With the opening apology, the whole utterance is a casual “I’m sorry, I need to change our plan.”

2. 出かける前に言ってくれてよかった。

   I'm glad you told me before I left.

   出かける

   leave; go out

   前に

   before

   言ってくれて

   told me as a favor

   よかった

   was good; glad

   More detail

   出かける is the dictionary form of the verb meaning “to go out” or “to leave.” In this sentence, the fixed translation identifies the relevant event as the speaker’s leaving. With a time expression, the dictionary form can appear before 前に: 出かける前に means “before leaving.” 前に means “before” in this temporal pattern. Nの前に means “before N,” while V-る前に means “before doing V.” Here, 出かける names the action that precedes the reference point. 言ってくれて comes from 言う, “to say” or “to tell.” 言って is its て-form, and くれて is the て-form of くれる. In this use, くれる presents the telling as a favor received by the speaker, so the fixed translation gives “you told me.” The て-form connects this action to the following evaluation. よかった is the past form of いい (“good”). In V-てよかった, the speaker evaluates an achieved or completed situation positively: “I’m glad that V happened” or “It was good that V happened.” Together, 出かける前に言ってくれてよかった means “I’m glad you told me before I left.” The structure is 出かける前に (“before leaving/before I left”) + 言ってくれて (“you told me as a favor”) + よかった (“I’m glad it happened”). The Japanese sentence does not overtly state the subject or recipient, while the fixed translation identifies the speaker as the person who would leave and the recipient of the telling.

3. 予想外のことが起きたんだ。

   Something unexpected came up.

   予想外

   unexpected; unforeseen

   こと

   thing; event

   起きた

   happened; occurred

   んだ

   explanatory assertion

   More detail

   予想外 means “unexpected” or “unforeseen” here. It describes something that does not match what was expected. The related expression 予想どおり means “as expected,” so 予想外 and 予想どおり form a useful contrast. こと is a noun meaning “thing” or “matter.” In this sentence, 予想外のこと means “an unexpected thing/event.” The pattern Aのこと can link A to a thing or matter associated with A; here, の connects 予想外 to こと. 起きた is the past form of 起きる. In this sentence, 起きる means “to happen” or “to occur,” so 起きた means “happened.” The same verb can also mean “wake up” in another context, but the event meaning is the one supported here. Example: 問題が起きた。 — “A problem occurred.” んだ is the conversational contracted form of のだ. It adds an explanatory or presenting tone, as if the speaker is stating the situation for the listener to understand. It does not itself mean “happened”; that meaning comes from 起きた. A useful pattern is …んだ after a plain-form clause, as in 今日は休みなんだ。 — “It’s that today is a day off” / more naturally, “Today is a day off, you see.” Together, 予想外のこと (“an unexpected event”), 起きた (“happened”), and んだ (an explanatory assertion) produce: “Something unexpected happened.” In the fixed translation, the natural rendering is “Something unexpected came up.”

4. 大丈夫だよ。別の日を選べるよ。

   That's all right. We can choose another day.

   大丈夫

   all right; okay

   だよ

   it is; it’s so

   別

   different; another

   日

   day

   選べる

   can choose

   More detail

   大丈夫 means “all right” or “okay” here. It is commonly used predicatively to say that a situation is acceptable or poses no problem. In this utterance, it reassures the listener after an unexpected event; it does not itself specify what caused the problem. だよ follows 大丈夫 and makes the statement explicit and speaker-directed. だ is the plain copular form used after a noun or a な-adjective such as 大丈夫, while よ adds an informing or reassuring emphasis. For example, 大丈夫だよ。 can mean “It’s okay.” The よ is not part of the lexical meaning “okay.” 別 contributes the idea of being different from the one already under consideration. In 別の日, it helps form the reusable pattern 別の + noun, meaning “another/different + noun.” For example, 別の方法 means “another method.” 日 means “day” in this context. The phrase 別の日 therefore means “another day.” The particle の links 別 to 日, and を after the phrase marks 別の日 as the object of the following verb. 選べる means “can choose.” It is the potential form of 選ぶ (“to choose”): 選ぶ → 選べる. The form expresses ability or possibility, while the sentence’s omitted subject is understood as “we” in the fixed translation. For example, この中から選べる。 means “We/you can choose from among these,” with the exact subject supplied by context. Together, 別の日を選べるよ means “We can choose another day.” The object is 別の日 (“another day”), and 選べる says that choosing it is possible; よ presents this as reassuring information. Combined with 大丈夫だよ, the whole utterance means: “That’s all right. We can choose another day.”

5. 今週の後半なら大丈夫？

   Would later this week work for you?

   今週

   this week

   後半

   latter half; later part

   なら

   if it is …; as for …

   大丈夫

   okay; fine

   More detail

   今週 means “this week.” 今 is “now,” and 週 is “week”; together they form a time expression. For example, 今週会います。 means “I’ll meet [you] this week.” 後半 means “the latter half” or, in this time expression, “later part.” 前半 is the useful contrast meaning “the first half.” Thus 今週の後半 uses の to link “this week” with “the latter half”: “the latter half of this week.” なら follows that noun phrase and presents it as the condition or topic under consideration: “if it is …” or “as for ….” It is useful when checking whether a proposed option works. Here, 今週の後半なら means “if it is later this week.” For example, 金曜日なら大丈夫です。 means “Friday would be fine.” 大丈夫 means “okay,” “all right,” or “fine.” In this sentence it evaluates the proposed time as acceptable. It is a na-adjective-like expression, so a polite version can be 大丈夫です, while the plain form shown here is 大丈夫. For example, その時間で大丈夫です。 means “That time is fine.” Together, 今週の後半なら sets up “if it is later this week,” and 大丈夫？ asks whether that option is acceptable. The full utterance means “Would later this week work for you?” The final rising question intonation makes this a request for confirmation about the proposed time.

6. 今週の後半でいいよ。

   Later this week is fine for me.

   今週

   this week

   後半

   latter half; later part

   でいいよ

   is fine

   More detail

   今週 means “this week.” It is a time expression, and it can combine with の to specify a part of that period. Example: 今週は忙しいです。 — “I’m busy this week.” 後半 means “the latter half” or “later part.” In this sentence, 今週の後半 is the reusable pattern “the latter part of this week”: の links the larger period 今週 to the part 後半. 後半 contrasts with 前半 (“the first half” or “earlier part”). でいいよ expresses that the stated option is acceptable: “that is fine.” Here, で marks 今週の後半 as the acceptable time option, while いい is the adjective “good/acceptable,” and よ adds an informing or assuring tone. The phrase does not say that the time is objectively good; it says that it works for the speaker. Example: 明日でいいよ。 — “Tomorrow is fine.” Together, 今週の後半 identifies the proposed time, and でいいよ accepts it. The whole utterance means “Later this week is fine for me.” Japanese leaves the subject unspoken here; the speaker is identified by the fixed translation, while the surrounding arrangement supplies the situation.

7. 新しい予定を送れるよ。

   I can send you the new plan.

   新しい

   new

   予定

   plan; schedule

   送れる

   can send

   More detail

   新しい means “new” here and comes before the noun it describes. Its base form is 新しい; it is an い-adjective, so it can directly modify a noun: 新しい予定 = “a new plan.” For example, 新しい本 means “a new book.” 予定 means “plan” here, with the intended sense given by the translation. It can also mean a schedule or an arrangement in other contexts. For example, 予定があります means “I have plans” or “I have a schedule/appointment,” depending on context. In this sentence, 新しい identifies the plan as new. 送れる means “can send.” It is the potential form of the verb 送る (“to send”): 送る → 送れる. The potential form expresses ability or feasibility; here, the fixed translation supports “I can send.” For example, 今日送れる means “I can send it today.” The object appears before this verb as 予定を, with を marking what is sent. Together, 新しい予定を means “the new plan” as the thing being sent, and 送れる adds the ability to send it. The complete utterance means: “I can send you the new plan.” Japanese does not express the English recipient “you” with a separate word here; the intended recipient is supplied by the fixed translation and context.

8. それなら予定を調整できるよ。

   That helps me adjust my schedule.

   それなら

   if that is the case; then

   予定

   schedule; plan

   調整

   adjustment; coordination

   できる

   can; be able to

   よ

   sentence-ending emphasis

   More detail

   それなら means “if that is the case” or “then,” linking the sentence to information already mentioned. Here it connects to the preceding information and sets the condition for what follows. A reusable pattern is それなら、… (“In that case, …”). 予定 means a schedule, plan, or planned arrangement. In this sentence it is the object being adjusted. The particle を marks it as the object: 予定を = “the schedule/plan.” 調整 means adjustment or coordination. It is a noun that can also combine with する to make the verb 調整する (“to adjust”). Here it combines with できる in 調整できる, meaning “can adjust.” できる means “can” or “be able to” in this construction. With 調整, 調整できる means “can adjust.” The potential meaning is expressed by できる, rather than by changing 調整 itself. Example: 予定を変更できる。 — “I can change the schedule.” よ is a sentence-ending particle that presents the statement to the listener with emphasis or assurance. It does not add a separate event or object; the main proposition is 予定を調整できる. Together, それなら (“in that case”) + 予定を (“the schedule”) + 調整できる (“can adjust”) + よ produces the meaning “That helps me adjust my schedule.” Japanese does not state the subject here; according to the fixed translation, the speaker is the person who can adjust the schedule. The sentence is a direct, conversational way to say that the stated condition makes schedule adjustment possible.