English verb conjugation MUST SPECIALISE

Regular verb: specialise - specialised - specialised

Affirmation

Simple form

I must specialise
you must specialise
he must specialise
we must specialise
you must specialise
they must specialise

V-ing form

I must be specialising
you must be specialising
he must be specialising
we must be specialising
you must be specialising
they must be specialising

Perfect

I must have specialised
you must have specialised
he must have specialised
we must have specialised
you must have specialised
they must have specialised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I specialise?
must you specialise?
must he specialise?
must we specialise?
must you specialise?
must they specialise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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