English verb conjugation MUST LENGTHEN LENGTHEN

Regular verb: lengthen lengthen - lengthen lengthened - lengthen lengthened

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

Affirmation

Simple form

I must lengthen lengthen
you must lengthen lengthen
he must lengthen lengthen
we must lengthen lengthen
you must lengthen lengthen
they must lengthen lengthen

V-ing form

I must be lengthen lengthening
you must be lengthen lengthening
he must be lengthen lengthening
we must be lengthen lengthening
you must be lengthen lengthening
they must be lengthen lengthening

Perfect

I must have lengthen lengthened
you must have lengthen lengthened
he must have lengthen lengthened
we must have lengthen lengthened
you must have lengthen lengthened
they must have lengthen lengthened

V-ing perfect

I must have been lengthen lengthening
you must have been lengthen lengthening
he must have been lengthen lengthening
we must have been lengthen lengthening
you must have been lengthen lengthening
they must have been lengthen lengthening

Negation

Simple form

I must not lengthen lengthen
you must not lengthen lengthen
he must not lengthen lengthen
we must not lengthen lengthen
you must not lengthen lengthen
they must not lengthen lengthen

V-ing form

I must not be lengthen lengthening
you must not be lengthen lengthening
he must not be lengthen lengthening
we must not be lengthen lengthening
you must not be lengthen lengthening
they must not be lengthen lengthening

Perfect

I must not have lengthen lengthened
you must not have lengthen lengthened
he must not have lengthen lengthened
we must not have lengthen lengthened
you must not have lengthen lengthened
they must not have lengthen lengthened

V-ing perfect

I must not have been lengthen lengthening
you must not have been lengthen lengthening
he must not have been lengthen lengthening
we must not have been lengthen lengthening
you must not have been lengthen lengthening
they must not have been lengthen lengthening

Interrogative form

Simple form

must I lengthen lengthen?
must you lengthen lengthen?
must he lengthen lengthen?
must we lengthen lengthen?
must you lengthen lengthen?
must they lengthen lengthen?

V-ing form

must I be lengthen lengthening?
must you be lengthen lengthening?
must he be lengthen lengthening?
must we be lengthen lengthening?
must you be lengthen lengthening?
must they be lengthen lengthening?

Perfect

must I have lengthen lengthened?
must you have lengthen lengthened?
must he have lengthen lengthened?
must we have lengthen lengthened?
must you have lengthen lengthened?
must they have lengthen lengthened?

V-ing perfect

must I have been lengthen lengthening?
must you have been lengthen lengthening?
must he have been lengthen lengthening?
must we have been lengthen lengthening?
must you have been lengthen lengthening?
must they have been lengthen lengthening?

Interro-negative form

Simple form

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

V-ing form

must I not be lengthen lengthening?
must you not be lengthen lengthening?
must he not be lengthen lengthening?
must we not be lengthen lengthening?
must you not be lengthen lengthening?
must they not be lengthen lengthening?

Perfect

must I not have lengthen lengthened?
must you not have lengthen lengthened?
must he not have lengthen lengthened?
must we not have lengthen lengthened?
must you not have lengthen lengthened?
must they not have lengthen lengthened?

V-ing perfect

must I not have been lengthen lengthening?
must you not have been lengthen lengthening?
must he not have been lengthen lengthening?
must we not have been lengthen lengthening?
must you not have been lengthen lengthening?
must they not have been lengthen lengthening?

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