English verb conjugation MUST TARIFF

Regular verb: tariff - tariffed - tariffed

Affirmation

Simple form

I must tariff
you must tariff
he must tariff
we must tariff
you must tariff
they must tariff

V-ing form

I must be tariffing
you must be tariffing
he must be tariffing
we must be tariffing
you must be tariffing
they must be tariffing

Perfect

I must have tariffed
you must have tariffed
he must have tariffed
we must have tariffed
you must have tariffed
they must have tariffed

V-ing perfect

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

Negation

Simple form

I must not tariff
you must not tariff
he must not tariff
we must not tariff
you must not tariff
they must not tariff

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I tariff?
must you tariff?
must he tariff?
must we tariff?
must you tariff?
must they tariff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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