English verb conjugation MUST ENDEAVOR

Regular verb: endeavor - endeavored - endeavored

Affirmation

Simple form

I must endeavor
you must endeavor
he must endeavor
we must endeavor
you must endeavor
they must endeavor

V-ing form

I must be endeavoring
you must be endeavoring
he must be endeavoring
we must be endeavoring
you must be endeavoring
they must be endeavoring

Perfect

I must have endeavored
you must have endeavored
he must have endeavored
we must have endeavored
you must have endeavored
they must have endeavored

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I endeavor?
must you endeavor?
must he endeavor?
must we endeavor?
must you endeavor?
must they endeavor?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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