English verb conjugation
MUST ENTRAIN

Regular verb: entrain - entrained - entrained

Affirmation

Simple form	V-ing form
I must entrain you must entrain he must entrain we must entrain you must entrain they must entrain	I must be entraining you must be entraining he must be entraining we must be entraining you must be entraining they must be entraining
Perfect	V-ing perfect
I must have entrained you must have entrained he must have entrained we must have entrained you must have entrained they must have entrained	I must have been entraining you must have been entraining he must have been entraining we must have been entraining you must have been entraining they must have been entraining

Negation

Simple form	V-ing form
I mustn't entrain you mustn't entrain he mustn't entrain we mustn't entrain you mustn't entrain they mustn't entrain	I mustn't be entraining you mustn't be entraining he mustn't be entraining we mustn't be entraining you mustn't be entraining they mustn't be entraining
Perfect	V-ing perfect
I mustn't have entrained you mustn't have entrained he mustn't have entrained we mustn't have entrained you mustn't have entrained they mustn't have entrained	I mustn't have been entraining you mustn't have been entraining he mustn't have been entraining we mustn't have been entraining you mustn't have been entraining they mustn't have been entraining

Interrogative form

Simple form	V-ing form
must I entrain? must you entrain? must he entrain? must we entrain? must you entrain? must they entrain?	must I be entraining? must you be entraining? must he be entraining? must we be entraining? must you be entraining? must they be entraining?
Perfect	V-ing perfect
must I have entrained? must you have entrained? must he have entrained? must we have entrained? must you have entrained? must they have entrained?	must I have been entraining? must you have been entraining? must he have been entraining? must we have been entraining? must you have been entraining? must they have been entraining?

Interro-negative form

Simple form	V-ing form
mustn't I entrain? mustn't you entrain? mustn't he entrain? mustn't we entrain? mustn't you entrain? mustn't they entrain?	mustn't I be entraining? mustn't you be entraining? mustn't he be entraining? mustn't we be entraining? mustn't you be entraining? mustn't they be entraining?
Perfect	V-ing perfect
mustn't I have entrained? mustn't you have entrained? mustn't he have entrained? mustn't we have entrained? mustn't you have entrained? mustn't they have entrained?	mustn't I have been entraining? mustn't you have been entraining? mustn't he have been entraining? mustn't we have been entraining? mustn't you have been entraining? mustn't they have been entraining?