English verb conjugation MUST HARDEN

Regular verb: harden - hardened - hardened

Affirmation

Simple form

I must harden
you must harden
she must harden
we must harden
you must harden
they must harden

V-ing form

I must be hardening
you must be hardening
she must be hardening
we must be hardening
you must be hardening
they must be hardening

Perfect

I must have hardened
you must have hardened
she must have hardened
we must have hardened
you must have hardened
they must have hardened

V-ing perfect

I must have been hardening
you must have been hardening
she must have been hardening
we must have been hardening
you must have been hardening
they must have been hardening

Negation

Simple form

I must not harden
you must not harden
she must not harden
we must not harden
you must not harden
they must not harden

V-ing form

I must not be hardening
you must not be hardening
she must not be hardening
we must not be hardening
you must not be hardening
they must not be hardening

Perfect

I must not have hardened
you must not have hardened
she must not have hardened
we must not have hardened
you must not have hardened
they must not have hardened

V-ing perfect

I must not have been hardening
you must not have been hardening
she must not have been hardening
we must not have been hardening
you must not have been hardening
they must not have been hardening

Interrogative form

Simple form

must I harden?
must you harden?
must she harden?
must we harden?
must you harden?
must they harden?

V-ing form

must I be hardening?
must you be hardening?
must she be hardening?
must we be hardening?
must you be hardening?
must they be hardening?

Perfect

must I have hardened?
must you have hardened?
must she have hardened?
must we have hardened?
must you have hardened?
must they have hardened?

V-ing perfect

must I have been hardening?
must you have been hardening?
must she have been hardening?
must we have been hardening?
must you have been hardening?
must they have been hardening?

Interro-negative form

Simple form

must I not harden?
must you not harden?
must she not harden?
must we not harden?
must you not harden?
must they not harden?

V-ing form

must I not be hardening?
must you not be hardening?
must she not be hardening?
must we not be hardening?
must you not be hardening?
must they not be hardening?

Perfect

must I not have hardened?
must you not have hardened?
must she not have hardened?
must we not have hardened?
must you not have hardened?
must they not have hardened?

V-ing perfect

must I not have been hardening?
must you not have been hardening?
must she not have been hardening?
must we not have been hardening?
must you not have been hardening?
must they not have been hardening?

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