English verb conjugation COULD BACKSOLVE

Regular verb: backsolve - backsolved - backsolved

Affirmation

Simple form

I could backsolve
you could backsolve
he could backsolve
we could backsolve
you could backsolve
they could backsolve

V-ing form

I could be backsolving
you could be backsolving
he could be backsolving
we could be backsolving
you could be backsolving
they could be backsolving

Perfect

I could have backsolved
you could have backsolved
he could have backsolved
we could have backsolved
you could have backsolved
they could have backsolved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I backsolve?
could you backsolve?
could he backsolve?
could we backsolve?
could you backsolve?
could they backsolve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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