English verb conjugation MUST REQUIRE

Regular verb: require - required - required

Affirmation

Simple form

I must require
you must require
he must require
we must require
you must require
they must require

V-ing form

I must be requiring
you must be requiring
he must be requiring
we must be requiring
you must be requiring
they must be requiring

Perfect

I must have required
you must have required
he must have required
we must have required
you must have required
they must have required

V-ing perfect

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

Negation

Simple form

I must not require
you must not require
he must not require
we must not require
you must not require
they must not require

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I require?
must you require?
must he require?
must we require?
must you require?
must they require?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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