English verb conjugation MUST BASE

Regular verb: base - based - based

Affirmation

Simple form

I must base
you must base
she must base
we must base
you must base
they must base

V-ing form

I must be basing
you must be basing
she must be basing
we must be basing
you must be basing
they must be basing

Perfect

I must have based
you must have based
she 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
she must have been basing
we must have been basing
you must have been basing
they must have been basing

Negation

Simple form

I mustn't base
you mustn't base
she mustn't base
we mustn't base
you mustn't base
they mustn't base

V-ing form

I mustn't be basing
you mustn't be basing
she mustn't be basing
we mustn't be basing
you mustn't be basing
they mustn't be basing

Perfect

I mustn't have based
you mustn't have based
she mustn't have based
we mustn't have based
you mustn't have based
they mustn't have based

V-ing perfect

I mustn't have been basing
you mustn't have been basing
she mustn't have been basing
we mustn't have been basing
you mustn't have been basing
they mustn't have been basing

Interrogative form

Simple form

must I base?
must you base?
must she base?
must we base?
must you base?
must they base?

V-ing form

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

Perfect

must I have based?
must you have based?
must she 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 she have been basing?
must we have been basing?
must you have been basing?
must they have been basing?

Interro-negative form

Simple form

mustn't I base?
mustn't you base?
mustn't she base?
mustn't we base?
mustn't you base?
mustn't they base?

V-ing form

mustn't I be basing?
mustn't you be basing?
mustn't she be basing?
mustn't we be basing?
mustn't you be basing?
mustn't they be basing?

Perfect

mustn't I have based?
mustn't you have based?
mustn't she have based?
mustn't we have based?
mustn't you have based?
mustn't they have based?

V-ing perfect

mustn't I have been basing?
mustn't you have been basing?
mustn't she have been basing?
mustn't we have been basing?
mustn't you have been basing?
mustn't they have been basing?

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