English verb conjugation MUST WHIFF

Regular verb: whiff - whiffed - whiffed

Affirmation

Simple form

I must whiff
you must whiff
he must whiff
we must whiff
you must whiff
they must whiff

V-ing form

I must be whiffing
you must be whiffing
he must be whiffing
we must be whiffing
you must be whiffing
they must be whiffing

Perfect

I must have whiffed
you must have whiffed
he must have whiffed
we must have whiffed
you must have whiffed
they must have whiffed

V-ing perfect

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

Negation

Simple form

I must not whiff
you must not whiff
he must not whiff
we must not whiff
you must not whiff
they must not whiff

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I whiff?
must you whiff?
must he whiff?
must we whiff?
must you whiff?
must they whiff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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