English verb conjugation COULD PRESOLVE

Regular verb: presolve - presolved - presolved

Affirmation

Simple form

I could presolve
you could presolve
he could presolve
we could presolve
you could presolve
they could presolve

V-ing form

I could be presolving
you could be presolving
he could be presolving
we could be presolving
you could be presolving
they could be presolving

Perfect

I could have presolved
you could have presolved
he could have presolved
we could have presolved
you could have presolved
they could have presolved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I presolve?
could you presolve?
could he presolve?
could we presolve?
could you presolve?
could they presolve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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