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