English verb conjugation MUST SPY

Regular verb: spy - spied - spied

Affirmation

Simple form

I must spy
you must spy
he must spy
we must spy
you must spy
they must spy

V-ing form

I must be spying
you must be spying
he must be spying
we must be spying
you must be spying
they must be spying

Perfect

I must have spied
you must have spied
he must have spied
we must have spied
you must have spied
they must have spied

V-ing perfect

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

Negation

Simple form

I must not spy
you must not spy
he must not spy
we must not spy
you must not spy
they must not spy

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I spy?
must you spy?
must he spy?
must we spy?
must you spy?
must they spy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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