English verb conjugation COULD CONJECTURE

Regular verb: conjecture - conjectured - conjectured

Affirmation

Simple form

I could conjecture
you could conjecture
he could conjecture
we could conjecture
you could conjecture
they could conjecture

V-ing form

I could be conjecturing
you could be conjecturing
he could be conjecturing
we could be conjecturing
you could be conjecturing
they could be conjecturing

Perfect

I could have conjectured
you could have conjectured
he could have conjectured
we could have conjectured
you could have conjectured
they could have conjectured

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I conjecture?
could you conjecture?
could he conjecture?
could we conjecture?
could you conjecture?
could they conjecture?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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