English verb conjugation MUST GRAIN

Regular verb: grain - grained - grained

Affirmation

Simple form

I must grain
you must grain
he must grain
we must grain
you must grain
they must grain

V-ing form

I must be graining
you must be graining
he must be graining
we must be graining
you must be graining
they must be graining

Perfect

I must have grained
you must have grained
he must have grained
we must have grained
you must have grained
they must have grained

V-ing perfect

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

Negation

Simple form

I must not grain
you must not grain
he must not grain
we must not grain
you must not grain
they must not grain

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I grain?
must you grain?
must he grain?
must we grain?
must you grain?
must they grain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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