English verb conjugation COULD UNDERSTEER

Regular verb: understeer - understeered - understeered

Affirmation

Simple form

I could understeer
you could understeer
he could understeer
we could understeer
you could understeer
they could understeer

V-ing form

I could be understeering
you could be understeering
he could be understeering
we could be understeering
you could be understeering
they could be understeering

Perfect

I could have understeered
you could have understeered
he could have understeered
we could have understeered
you could have understeered
they could have understeered

V-ing perfect

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

Negation

Simple form

I could not understeer
you could not understeer
he could not understeer
we could not understeer
you could not understeer
they could not understeer

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I understeer?
could you understeer?
could he understeer?
could we understeer?
could you understeer?
could they understeer?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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