To Finish.

Hi Teachers please clarify me with my quandary.
I chanced upon the following:
If they say 'We ‘ve finished work for today’, they are saying it as the past participle of the verb to finish.
I had thought we only have to be verb but not to finish verb.
Know by the pattern of to be verb I have suggested to finish as these:
I finish/finished
You finish/finished
she/He/It finish/finished.
The finish/finished.
We finish/finished
You finish/finished.
They finish/finished…

Sorry, I don’t understand what you mean.

“we’ve finished” (= “we have finished”) is the present perfect tense of the verb “finish”. As with every other verb, this is formed using the present tense of the auxiliary verb “have” followed by the past participle of the main verb.

These are correct except:

“she/He/It finish/finished” – should be “She/He/It finishes/finished”
“The finish/finished” – Not right. You may have meant “The finishes/finished”