English verb conjugation COULD RETRACE

Regular verb: retrace - retraced - retraced

Affirmation

Simple form

I could retrace
you could retrace
he could retrace
we could retrace
you could retrace
they could retrace

V-ing form

I could be retracing
you could be retracing
he could be retracing
we could be retracing
you could be retracing
they could be retracing

Perfect

I could have retraced
you could have retraced
he could have retraced
we could have retraced
you could have retraced
they could have retraced

V-ing perfect

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

Negation

Simple form

I could not retrace
you could not retrace
he could not retrace
we could not retrace
you could not retrace
they could not retrace

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I retrace?
could you retrace?
could he retrace?
could we retrace?
could you retrace?
could they retrace?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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