English verb conjugation MUST SLACKEN

Regular verb: slacken - slackened - slackened

Affirmation

Simple form

I must slacken
you must slacken
he must slacken
we must slacken
you must slacken
they must slacken

V-ing form

I must be slackening
you must be slackening
he must be slackening
we must be slackening
you must be slackening
they must be slackening

Perfect

I must have slackened
you must have slackened
he must have slackened
we must have slackened
you must have slackened
they must have slackened

V-ing perfect

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

Negation

Simple form

I must not slacken
you must not slacken
he must not slacken
we must not slacken
you must not slacken
they must not slacken

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I slacken?
must you slacken?
must he slacken?
must we slacken?
must you slacken?
must they slacken?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top