Let
In "Let us go now" introduces a suggestion to do something together: laten we. In this construction, "Let" is followed by "us" and a verb in its basic form, as in "Let us eat together".
us
In "Let us go now", "us" refers to the speaker and the listener or group together. After "Let", it identifies the people included in the suggestion; the same pattern appears in "Let us start now".
go
In "Let us go now", "go" means move to another place. After "Let us", the verb stays in this form, for example "Let us go now" when suggesting that a group leave.
now
In "Let us go now", "now" means at this time or immediately. It commonly comes at the end of a short sentence, as in "Let us start now".
eat
In "Let us eat together", "eat" means have food. After "Let us", it has this basic form; you can use "Let us eat together" when suggesting a shared meal.
together
In "Let us eat together", "together" means with each other, so the speaker and listener will eat as a group. It commonly comes after the activity, as in "eat together".
start
In "Let us start now", "start" means begin an activity. After "Let us", it appears in this form; use "Let us start now" when inviting others to begin.
stop
In "Let us stop here", "stop" means end or cease the current activity. The pattern "Let us stop" can be used when a group agrees to stop, with a place such as "here" added when useful.
here
In "Let us stop here", "here" means in this place. It is placed after the activity to show where the group should stop, for example when deciding where to finish a walk.
Come
In "Come with me", "Come" tells someone to move toward the speaker. This is useful when inviting or directing someone to accompany you; the sentence continues with "with me".
with
In "Come with me", "with" means accompanied by. It is followed by the person who will accompany the speaker, as in "with me".
me
In "Come with me", "me" refers to the speaker, the person to accompany. After the preposition "with", this form is used in the pattern "Come with me".
Wait
In "Wait for me", "Wait" tells someone to stay until a person or thing arrives. Use this short request when you need someone not to leave immediately; it is followed here by "for me".
for
In "Wait for me", "for" indicates the person who is being awaited. In the reusable pattern "Wait for" it is followed by the person or thing that someone is waiting for.