English verb conjugation MUST RECUR

Regular verb: recur - recurred - recurred

Affirmation

Simple form

I must recur
you must recur
he must recur
we must recur
you must recur
they must recur

V-ing form

I must be recurring
you must be recurring
he must be recurring
we must be recurring
you must be recurring
they must be recurring

Perfect

I must have recurred
you must have recurred
he must have recurred
we must have recurred
you must have recurred
they must have recurred

V-ing perfect

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

Negation

Simple form

I must not recur
you must not recur
he must not recur
we must not recur
you must not recur
they must not recur

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I recur?
must you recur?
must he recur?
must we recur?
must you recur?
must they recur?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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