English verb conjugation MUST BASE

Regular verb: base - based - based

Affirmation

Simple form

I must base
you must base
he must base
we must base
you must base
they must base

V-ing form

I must be basing
you must be basing
he must be basing
we must be basing
you must be basing
they must be basing

Perfect

I must have based
you must have based
he must have based
we must have based
you must have based
they must have based

V-ing perfect

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

Negation

Simple form

I must not base
you must not base
he must not base
we must not base
you must not base
they must not base

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I base?
must you base?
must he base?
must we base?
must you base?
must they base?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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