English verb conjugation MUST FORM

Regular verb: form - formed - formed


Affirmation

Simple form

I must form
you must form
he must form
we must form
you must form
they must form

V-ing form

I must be forming
you must be forming
he must be forming
we must be forming
you must be forming
they must be forming

Perfect

I must have formed
you must have formed
he must have formed
we must have formed
you must have formed
they must have formed

V-ing perfect

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

Negation

Simple form

I must not form
you must not form
he must not form
we must not form
you must not form
they must not form

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I form?
must you form?
must he form?
must we form?
must you form?
must they form?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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