English verb conjugation MUST DERIVE

Regular verb: derive - derived - derived

Affirmation

Simple form

I must derive
you must derive
he must derive
we must derive
you must derive
they must derive

V-ing form

I must be deriving
you must be deriving
he must be deriving
we must be deriving
you must be deriving
they must be deriving

Perfect

I must have derived
you must have derived
he must have derived
we must have derived
you must have derived
they must have derived

V-ing perfect

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

Negation

Simple form

I must not derive
you must not derive
he must not derive
we must not derive
you must not derive
they must not derive

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I derive?
must you derive?
must he derive?
must we derive?
must you derive?
must they derive?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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