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male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation MUST ENDEAVOUR

Regular verb: endeavour - endeavoured - endeavoured


Affirmation

Simple form
I must endeavour
you must endeavour
she must endeavour
we must endeavour
you must endeavour
they must endeavour
V-ing form
I must be endeavouring
you must be endeavouring
she must be endeavouring
we must be endeavouring
you must be endeavouring
they must be endeavouring
Perfect
I must have endeavoured
you must have endeavoured
she 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
she 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
she 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
she 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
she 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
she 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 she endeavour?
must we endeavour?
must you endeavour?
must they endeavour?
V-ing form
must I be endeavouring?
must you be endeavouring?
must she be endeavouring?
must we be endeavouring?
must you be endeavouring?
must they be endeavouring?
Perfect
must I have endeavoured?
must you have endeavoured?
must she 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 she 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 she 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 she 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 she 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 she not have been endeavouring?
must we not have been endeavouring?
must you not have been endeavouring?
must they not have been endeavouring?