English verb conjugation
CAN INSURE

Regular verb: insure - insured - insured

Affirmation

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

Negation

Simple form	V-ing form
I can't insure you can't insure he can't insure we can't insure you can't insure they can't insure	I can't be insuring you can't be insuring he can't be insuring we can't be insuring you can't be insuring they can't be insuring
Perfect	V-ing perfect
I can't have insured you can't have insured he can't have insured we can't have insured you can't have insured they can't have insured	I can't have been insuring you can't have been insuring he can't have been insuring we can't have been insuring you can't have been insuring they can't have been insuring

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I insure? can't you insure? can't he insure? can't we insure? can't you insure? can't they insure?	can't I be insuring? can't you be insuring? can't he be insuring? can't we be insuring? can't you be insuring? can't they be insuring?
Perfect	V-ing perfect
can't I have insured? can't you have insured? can't he have insured? can't we have insured? can't you have insured? can't they have insured?	can't I have been insuring? can't you have been insuring? can't he have been insuring? can't we have been insuring? can't you have been insuring? can't they have been insuring?