English verb conjugation MUST COUPLE

Regular verb: couple - coupled - coupled

Affirmation

Simple form

I must couple
you must couple
he must couple
we must couple
you must couple
they must couple

V-ing form

I must be coupling
you must be coupling
he must be coupling
we must be coupling
you must be coupling
they must be coupling

Perfect

I must have coupled
you must have coupled
he must have coupled
we must have coupled
you must have coupled
they must have coupled

V-ing perfect

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

Negation

Simple form

I must not couple
you must not couple
he must not couple
we must not couple
you must not couple
they must not couple

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I couple?
must you couple?
must he couple?
must we couple?
must you couple?
must they couple?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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