English verb conjugation MUST UNDERHEAT

Regular verb: underheat - underheated - underheated

Affirmation

Simple form

I must underheat
you must underheat
he must underheat
we must underheat
you must underheat
they must underheat

V-ing form

I must be underheating
you must be underheating
he must be underheating
we must be underheating
you must be underheating
they must be underheating

Perfect

I must have underheated
you must have underheated
he must have underheated
we must have underheated
you must have underheated
they must have underheated

V-ing perfect

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

Negation

Simple form

I must not underheat
you must not underheat
he must not underheat
we must not underheat
you must not underheat
they must not underheat

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I underheat?
must you underheat?
must he underheat?
must we underheat?
must you underheat?
must they underheat?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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