English verb conjugation MUST ENDEAVOUR

Regular verb: endeavour - endeavoured - endeavoured

Affirmation

Simple form

I must endeavour
you must endeavour
he must endeavour
we must endeavour
you must endeavour
they must endeavour

V-ing form

I must be endeavouring
you must be endeavouring
he must be endeavouring
we must be endeavouring
you must be endeavouring
they must be endeavouring

Perfect

I must have endeavoured
you must have endeavoured
he must have endeavoured
we must have endeavoured
you must have endeavoured
they must have endeavoured

V-ing perfect

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

Negation

Simple form

I must not endeavour
you must not endeavour
he must not endeavour
we must not endeavour
you must not endeavour
they must not endeavour

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I endeavour?
must you endeavour?
must he endeavour?
must we endeavour?
must you endeavour?
must they endeavour?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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