English verb conjugation MUST SISE

Regular verb: sise - sised - sised

Affirmation

Simple form

I must sise
you must sise
he must sise
we must sise
you must sise
they must sise

V-ing form

I must be sising
you must be sising
he must be sising
we must be sising
you must be sising
they must be sising

Perfect

I must have sised
you must have sised
he must have sised
we must have sised
you must have sised
they must have sised

V-ing perfect

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

Negation

Simple form

I must not sise
you must not sise
he must not sise
we must not sise
you must not sise
they must not sise

V-ing form

I must not be sising
you must not be sising
he must not be sising
we must not be sising
you must not be sising
they must not be sising

Perfect

I must not have sised
you must not have sised
he must not have sised
we must not have sised
you must not have sised
they must not have sised

V-ing perfect

I must not have been sising
you must not have been sising
he must not have been sising
we must not have been sising
you must not have been sising
they must not have been sising

Interrogative form

Simple form

must I sise?
must you sise?
must he sise?
must we sise?
must you sise?
must they sise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not sise?
must you not sise?
must he not sise?
must we not sise?
must you not sise?
must they not sise?

V-ing form

must I not be sising?
must you not be sising?
must he not be sising?
must we not be sising?
must you not be sising?
must they not be sising?

Perfect

must I not have sised?
must you not have sised?
must he not have sised?
must we not have sised?
must you not have sised?
must they not have sised?

V-ing perfect

must I not have been sising?
must you not have been sising?
must he not have been sising?
must we not have been sising?
must you not have been sising?
must they not have been sising?

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