English verb conjugation MUST DUST

Regular verb: dust - dusted - dusted

Affirmation

Simple form

I must dust
you must dust
he must dust
we must dust
you must dust
they must dust

V-ing form

I must be dusting
you must be dusting
he must be dusting
we must be dusting
you must be dusting
they must be dusting

Perfect

I must have dusted
you must have dusted
he must have dusted
we must have dusted
you must have dusted
they must have dusted

V-ing perfect

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

Negation

Simple form

I must not dust
you must not dust
he must not dust
we must not dust
you must not dust
they must not dust

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I dust?
must you dust?
must he dust?
must we dust?
must you dust?
must they dust?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top