English verb conjugation MUST WHIRR

Regular verb: whirr - whirred - whirred

Affirmation

Simple form

I must whirr
you must whirr
he must whirr
we must whirr
you must whirr
they must whirr

V-ing form

I must be whirring
you must be whirring
he must be whirring
we must be whirring
you must be whirring
they must be whirring

Perfect

I must have whirred
you must have whirred
he must have whirred
we must have whirred
you must have whirred
they must have whirred

V-ing perfect

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

Negation

Simple form

I must not whirr
you must not whirr
he must not whirr
we must not whirr
you must not whirr
they must not whirr

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I whirr?
must you whirr?
must he whirr?
must we whirr?
must you whirr?
must they whirr?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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