English verb conjugation
COULD INSURE

Regular verb: insure - insured - insured

Affirmation

Simple form	V-ing form
I could insure you could insure he could insure we could insure you could insure they could insure	I could be insuring you could be insuring he could be insuring we could be insuring you could be insuring they could be insuring
Perfect	V-ing perfect
I could have insured you could have insured he could have insured we could have insured you could have insured they could have insured	I could have been insuring you could have been insuring he could have been insuring we could have been insuring you could have been insuring they could have been insuring

Negation

Simple form	V-ing form
I could not insure you could not insure he could not insure we could not insure you could not insure they could not insure	I could not be insuring you could not be insuring he could not be insuring we could not be insuring you could not be insuring they could not be insuring
Perfect	V-ing perfect
I could not have insured you could not have insured he could not have insured we could not have insured you could not have insured they could not have insured	I could not have been insuring you could not have been insuring he could not have been insuring we could not have been insuring you could not have been insuring they could not have been insuring

Interrogative form

Simple form	V-ing form
could I insure? could you insure? could he insure? could we insure? could you insure? could they insure?	could I be insuring? could you be insuring? could he be insuring? could we be insuring? could you be insuring? could they be insuring?
Perfect	V-ing perfect
could I have insured? could you have insured? could he have insured? could we have insured? could you have insured? could they have insured?	could I have been insuring? could you have been insuring? could he have been insuring? could we have been insuring? could you have been insuring? could they have been insuring?

Interro-negative form

Simple form	V-ing form
could I not insure? could you not insure? could he not insure? could we not insure? could you not insure? could they not insure?	could I not be insuring? could you not be insuring? could he not be insuring? could we not be insuring? could you not be insuring? could they not be insuring?
Perfect	V-ing perfect
could I not have insured? could you not have insured? could he not have insured? could we not have insured? could you not have insured? could they not have insured?	could I not have been insuring? could you not have been insuring? could he not have been insuring? could we not have been insuring? could you not have been insuring? could they not have been insuring?