English verb conjugation MUST EXTINGUISH

Regular verb: extinguish - extinguished - extinguished

Affirmation

Simple form

I must extinguish
you must extinguish
he must extinguish
we must extinguish
you must extinguish
they must extinguish

V-ing form

I must be extinguishing
you must be extinguishing
he must be extinguishing
we must be extinguishing
you must be extinguishing
they must be extinguishing

Perfect

I must have extinguished
you must have extinguished
he must have extinguished
we must have extinguished
you must have extinguished
they must have extinguished

V-ing perfect

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

Negation

Simple form

I must not extinguish
you must not extinguish
he must not extinguish
we must not extinguish
you must not extinguish
they must not extinguish

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I extinguish?
must you extinguish?
must he extinguish?
must we extinguish?
must you extinguish?
must they extinguish?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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