How should verb goes with "let" be in past tenses?
- Present tense: let's go; let me see
- Past tense: let's went? let me saw?
I'm unable to search for any information about this. It seems like let will never be used in a past tense sentence
The past form of let is let.
It is also used in the imperative.
Let me see it
You can not have past forms for imperative sentences.
However you can say:
My principal let me leave early yesterday.
He let me see the picture yesterday
The principal did not let me leave early yesterday
He did not let me see the picture yesterday
There's no such thing as a "past tense" for Let's go, Let me see - which technically speaking are imperative requests / commands / suggestions, with implied subject "you".
The nearest equivalents I think of are We should have gone, You should have let me see, because the "present tense" versions are equivalent to We should go, You should let me see.
let's + a verb in English is an imperative. Imperatives are only in the present tense. The meaning is: Let's leave this place or Let's do [something].
The verb let is the same in all tenses:
They let us go to the movies. [both simple present AND simple past] They have let us go to the movies. [this week, this month, recently, this year etc.] They are letting us go to the movies.
There are other verbs that do not change in English: put, set, hit, cost, hurt, shut, quit, split, and spread.
I know of no language that has imperatives in other tenses. The nature of the imperative is that it applies to the present.
"My principal let me [do something]." can be simple present or simple past. Only a specific context will tell you which it is.
to let go is also a phrasal verb: Let it go. [disregard it or let something loose, like a fish you catch]