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