English verb conjugation
MUST ENTER STH

Regular verb: enter sth - enter sthed - enter sthed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must enter sth you must enter sth she must enter sth we must enter sth you must enter sth they must enter sth	I must be enter sthing you must be enter sthing she must be enter sthing we must be enter sthing you must be enter sthing they must be enter sthing
Perfect	V-ing perfect
I must have enter sthed you must have enter sthed she must have enter sthed we must have enter sthed you must have enter sthed they must have enter sthed	I must have been enter sthing you must have been enter sthing she 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	V-ing form
I mustn't enter sth you mustn't enter sth she mustn't enter sth we mustn't enter sth you mustn't enter sth they mustn't enter sth	I mustn't be enter sthing you mustn't be enter sthing she mustn't be enter sthing we mustn't be enter sthing you mustn't be enter sthing they mustn't be enter sthing
Perfect	V-ing perfect
I mustn't have enter sthed you mustn't have enter sthed she mustn't have enter sthed we mustn't have enter sthed you mustn't have enter sthed they mustn't have enter sthed	I mustn't have been enter sthing you mustn't have been enter sthing she mustn't have been enter sthing we mustn't have been enter sthing you mustn't have been enter sthing they mustn't have been enter sthing

Interrogative form

Simple form	V-ing form
must I enter sth? must you enter sth? must she enter sth? must we enter sth? must you enter sth? must they enter sth?	must I be enter sthing? must you be enter sthing? must she be enter sthing? must we be enter sthing? must you be enter sthing? must they be enter sthing?
Perfect	V-ing perfect
must I have enter sthed? must you have enter sthed? must she have enter sthed? must we have enter sthed? must you have enter sthed? must they have enter sthed?	must I have been enter sthing? must you have been enter sthing? must she 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	V-ing form
mustn't I enter sth? mustn't you enter sth? mustn't she enter sth? mustn't we enter sth? mustn't you enter sth? mustn't they enter sth?	mustn't I be enter sthing? mustn't you be enter sthing? mustn't she be enter sthing? mustn't we be enter sthing? mustn't you be enter sthing? mustn't they be enter sthing?
Perfect	V-ing perfect
mustn't I have enter sthed? mustn't you have enter sthed? mustn't she have enter sthed? mustn't we have enter sthed? mustn't you have enter sthed? mustn't they have enter sthed?	mustn't I have been enter sthing? mustn't you have been enter sthing? mustn't she have been enter sthing? mustn't we have been enter sthing? mustn't you have been enter sthing? mustn't they have been enter sthing?