English verb conjugation MUST ATTAIN

Regular verb: attain - attained - attained

Affirmation

Simple form

I must attain
you must attain
he must attain
we must attain
you must attain
they must attain

V-ing form

I must be attaining
you must be attaining
he must be attaining
we must be attaining
you must be attaining
they must be attaining

Perfect

I must have attained
you must have attained
he must have attained
we must have attained
you must have attained
they must have attained

V-ing perfect

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

Negation

Simple form

I mustn't attain
you mustn't attain
he mustn't attain
we mustn't attain
you mustn't attain
they mustn't attain

V-ing form

I mustn't be attaining
you mustn't be attaining
he mustn't be attaining
we mustn't be attaining
you mustn't be attaining
they mustn't be attaining

Perfect

I mustn't have attained
you mustn't have attained
he mustn't have attained
we mustn't have attained
you mustn't have attained
they mustn't have attained

V-ing perfect

I mustn't have been attaining
you mustn't have been attaining
he mustn't have been attaining
we mustn't have been attaining
you mustn't have been attaining
they mustn't have been attaining

Interrogative form

Simple form

must I attain?
must you attain?
must he attain?
must we attain?
must you attain?
must they attain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

mustn't I attain?
mustn't you attain?
mustn't he attain?
mustn't we attain?
mustn't you attain?
mustn't they attain?

V-ing form

mustn't I be attaining?
mustn't you be attaining?
mustn't he be attaining?
mustn't we be attaining?
mustn't you be attaining?
mustn't they be attaining?

Perfect

mustn't I have attained?
mustn't you have attained?
mustn't he have attained?
mustn't we have attained?
mustn't you have attained?
mustn't they have attained?

V-ing perfect

mustn't I have been attaining?
mustn't you have been attaining?
mustn't he have been attaining?
mustn't we have been attaining?
mustn't you have been attaining?
mustn't they have been attaining?

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