English verb conjugation COULD TRACE

Regular verb: trace - traced - traced

Affirmation

Simple form

I could trace
you could trace
he could trace
we could trace
you could trace
they could trace

V-ing form

I could be tracing
you could be tracing
he could be tracing
we could be tracing
you could be tracing
they could be tracing

Perfect

I could have traced
you could have traced
he could have traced
we could have traced
you could have traced
they could have traced

V-ing perfect

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

Negation

Simple form

I couldn't trace
you couldn't trace
he couldn't trace
we couldn't trace
you couldn't trace
they couldn't trace

V-ing form

I couldn't be tracing
you couldn't be tracing
he couldn't be tracing
we couldn't be tracing
you couldn't be tracing
they couldn't be tracing

Perfect

I couldn't have traced
you couldn't have traced
he couldn't have traced
we couldn't have traced
you couldn't have traced
they couldn't have traced

V-ing perfect

I couldn't have been tracing
you couldn't have been tracing
he couldn't have been tracing
we couldn't have been tracing
you couldn't have been tracing
they couldn't have been tracing

Interrogative form

Simple form

could I trace?
could you trace?
could he trace?
could we trace?
could you trace?
could they trace?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I trace?
couldn't you trace?
couldn't he trace?
couldn't we trace?
couldn't you trace?
couldn't they trace?

V-ing form

couldn't I be tracing?
couldn't you be tracing?
couldn't he be tracing?
couldn't we be tracing?
couldn't you be tracing?
couldn't they be tracing?

Perfect

couldn't I have traced?
couldn't you have traced?
couldn't he have traced?
couldn't we have traced?
couldn't you have traced?
couldn't they have traced?

V-ing perfect

couldn't I have been tracing?
couldn't you have been tracing?
couldn't he have been tracing?
couldn't we have been tracing?
couldn't you have been tracing?
couldn't they have been tracing?

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