English verb conjugation MUST LAUGHTER

Regular verb: laughter - laughtered - laughtered

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form

I must laughter
you must laughter
he must laughter
we must laughter
you must laughter
they must laughter

V-ing form

I must be laughtering
you must be laughtering
he must be laughtering
we must be laughtering
you must be laughtering
they must be laughtering

Perfect

I must have laughtered
you must have laughtered
he must have laughtered
we must have laughtered
you must have laughtered
they must have laughtered

V-ing perfect

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

Negation

Simple form

I must not laughter
you must not laughter
he must not laughter
we must not laughter
you must not laughter
they must not laughter

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I laughter?
must you laughter?
must he laughter?
must we laughter?
must you laughter?
must they laughter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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