The verb "let", is one of those words that never change form, regardless of the verb tense. I.E. "He had let his friend borrow the car". Other words in this category include "hit" and "put".
The past participle is also "let".
Let does not change from present tense to past tense. Let is also the past participle.
The present perfect tense of let is: have/has let
The past participle of do is done. The past participle of have is had.
For a regular verb let's use "answer". Present: answer, Past: answered, Past Participle: answered. For an irregular verb let's use "run". Present: run, Past: ran, PP: run.
The past participle is also "let".
Let does not change from present tense to past tense. Let is also the past participle.
The past participle is let. The simple past tense is letted.
"Let" is one of the "invariable" irregular verbs; its present, past, and past participle are all "let".
The present perfect tense of let is: have/has let
The past participle of do is done. The past participle of have is had.
For a regular verb let's use "answer". Present: answer, Past: answered, Past Participle: answered. For an irregular verb let's use "run". Present: run, Past: ran, PP: run.
The past participle of am is been. Not does not have a past participle
"Let" is an irregular verb whose past simple and past participle are also "let". Therefore:My mother only lets me watch TV if I finish my homework. (Present)My mother let me watch TV yesterday after I finished my homework. (Past simple)My mother hasn't let me watch TV this week because I didn't do my homework. (Past participle)
What is the past participle of do
The past participle of have is had....:) I have had...
The past participle is had.