English verb conjugation MUST TROUBLE

Regular verb: trouble - troubled - troubled

Affirmation

Simple form

I must trouble
you must trouble
he must trouble
we must trouble
you must trouble
they must trouble

V-ing form

I must be troubling
you must be troubling
he must be troubling
we must be troubling
you must be troubling
they must be troubling

Perfect

I must have troubled
you must have troubled
he must have troubled
we must have troubled
you must have troubled
they must have troubled

V-ing perfect

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

Negation

Simple form

I must not trouble
you must not trouble
he must not trouble
we must not trouble
you must not trouble
they must not trouble

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I trouble?
must you trouble?
must he trouble?
must we trouble?
must you trouble?
must they trouble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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