English verb conjugation MUST BEHAVE

Regular verb: behave - behaved - behaved

Affirmation

Simple form

I must behave
you must behave
he must behave
we must behave
you must behave
they must behave

V-ing form

I must be behaving
you must be behaving
he must be behaving
we must be behaving
you must be behaving
they must be behaving

Perfect

I must have behaved
you must have behaved
he must have behaved
we must have behaved
you must have behaved
they must have behaved

V-ing perfect

I must have been behaving
you must have been behaving
he must have been behaving
we must have been behaving
you must have been behaving
they must have been behaving

Negation

Simple form

I mustn't behave
you mustn't behave
he mustn't behave
we mustn't behave
you mustn't behave
they mustn't behave

V-ing form

I mustn't be behaving
you mustn't be behaving
he mustn't be behaving
we mustn't be behaving
you mustn't be behaving
they mustn't be behaving

Perfect

I mustn't have behaved
you mustn't have behaved
he mustn't have behaved
we mustn't have behaved
you mustn't have behaved
they mustn't have behaved

V-ing perfect

I mustn't have been behaving
you mustn't have been behaving
he mustn't have been behaving
we mustn't have been behaving
you mustn't have been behaving
they mustn't have been behaving

Interrogative form

Simple form

must I behave?
must you behave?
must he behave?
must we behave?
must you behave?
must they behave?

V-ing form

must I be behaving?
must you be behaving?
must he be behaving?
must we be behaving?
must you be behaving?
must they be behaving?

Perfect

must I have behaved?
must you have behaved?
must he have behaved?
must we have behaved?
must you have behaved?
must they have behaved?

V-ing perfect

must I have been behaving?
must you have been behaving?
must he have been behaving?
must we have been behaving?
must you have been behaving?
must they have been behaving?

Interro-negative form

Simple form

mustn't I behave?
mustn't you behave?
mustn't he behave?
mustn't we behave?
mustn't you behave?
mustn't they behave?

V-ing form

mustn't I be behaving?
mustn't you be behaving?
mustn't he be behaving?
mustn't we be behaving?
mustn't you be behaving?
mustn't they be behaving?

Perfect

mustn't I have behaved?
mustn't you have behaved?
mustn't he have behaved?
mustn't we have behaved?
mustn't you have behaved?
mustn't they have behaved?

V-ing perfect

mustn't I have been behaving?
mustn't you have been behaving?
mustn't he have been behaving?
mustn't we have been behaving?
mustn't you have been behaving?
mustn't they have been behaving?

Page top