Regular verb: enter sth - enter sthed - enter sthed
Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could enter sth you could enter sth he could enter sth we could enter sth you could enter sth they could enter sth
V-ing form
I could be enter sthing you could be enter sthing he could be enter sthing we could be enter sthing you could be enter sthing they could be enter sthing
Perfect
I could have enter sthed you could have enter sthed he could have enter sthed we could have enter sthed you could have enter sthed they could have enter sthed
V-ing perfect
I could have been enter sthing you could have been enter sthing he could have been enter sthing we could have been enter sthing you could have been enter sthing they could have been enter sthing
Negation
Simple form
I could not enter sth you could not enter sth he could not enter sth we could not enter sth you could not enter sth they could not enter sth
V-ing form
I could not be enter sthing you could not be enter sthing he could not be enter sthing we could not be enter sthing you could not be enter sthing they could not be enter sthing
Perfect
I could not have enter sthed you could not have enter sthed he could not have enter sthed we could not have enter sthed you could not have enter sthed they could not have enter sthed
V-ing perfect
I could not have been enter sthing you could not have been enter sthing he could not have been enter sthing we could not have been enter sthing you could not have been enter sthing they could not have been enter sthing
Interrogative form
Simple form
could I enter sth? could you enter sth? could he enter sth? could we enter sth? could you enter sth? could they enter sth?
V-ing form
could I be enter sthing? could you be enter sthing? could he be enter sthing? could we be enter sthing? could you be enter sthing? could they be enter sthing?
Perfect
could I have enter sthed? could you have enter sthed? could he have enter sthed? could we have enter sthed? could you have enter sthed? could they have enter sthed?
V-ing perfect
could I have been enter sthing? could you have been enter sthing? could he have been enter sthing? could we have been enter sthing? could you have been enter sthing? could they have been enter sthing?
Interro-negative form
Simple form
could I not enter sth? could you not enter sth? could he not enter sth? could we not enter sth? could you not enter sth? could they not enter sth?
V-ing form
could I not be enter sthing? could you not be enter sthing? could he not be enter sthing? could we not be enter sthing? could you not be enter sthing? could they not be enter sthing?
Perfect
could I not have enter sthed? could you not have enter sthed? could he not have enter sthed? could we not have enter sthed? could you not have enter sthed? could they not have enter sthed?
V-ing perfect
could I not have been enter sthing? could you not have been enter sthing? could he not have been enter sthing? could we not have been enter sthing? could you not have been enter sthing? could they not have been enter sthing?