English verb conjugation MUST UNDERSTEER

Regular verb: understeer - understeered - understeered

Affirmation

Simple form

I must understeer
you must understeer
he must understeer
we must understeer
you must understeer
they must understeer

V-ing form

I must be understeering
you must be understeering
he must be understeering
we must be understeering
you must be understeering
they must be understeering

Perfect

I must have understeered
you must have understeered
he must have understeered
we must have understeered
you must have understeered
they must have understeered

V-ing perfect

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

Negation

Simple form

I must not understeer
you must not understeer
he must not understeer
we must not understeer
you must not understeer
they must not understeer

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I understeer?
must you understeer?
must he understeer?
must we understeer?
must you understeer?
must they understeer?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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