English verb conjugation MUST CAVERN

Regular verb: cavern - caverned - caverned

Affirmation

Simple form

I must cavern
you must cavern
he must cavern
we must cavern
you must cavern
they must cavern

V-ing form

I must be caverning
you must be caverning
he must be caverning
we must be caverning
you must be caverning
they must be caverning

Perfect

I must have caverned
you must have caverned
he must have caverned
we must have caverned
you must have caverned
they must have caverned

V-ing perfect

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

Negation

Simple form

I must not cavern
you must not cavern
he must not cavern
we must not cavern
you must not cavern
they must not cavern

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I cavern?
must you cavern?
must he cavern?
must we cavern?
must you cavern?
must they cavern?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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