English verb conjugation
CAN ENSURE

Regular verb: ensure - ensured - ensured

Affirmation

Simple form	V-ing form
I can ensure you can ensure he can ensure we can ensure you can ensure they can ensure	I can be ensuring you can be ensuring he can be ensuring we can be ensuring you can be ensuring they can be ensuring
Perfect	V-ing perfect
I can have ensured you can have ensured he can have ensured we can have ensured you can have ensured they can have ensured	I can have been ensuring you can have been ensuring he can have been ensuring we can have been ensuring you can have been ensuring they can have been ensuring

Negation

Simple form	V-ing form
I cannot ensure you cannot ensure he cannot ensure we cannot ensure you cannot ensure they cannot ensure	I cannot be ensuring you cannot be ensuring he cannot be ensuring we cannot be ensuring you cannot be ensuring they cannot be ensuring
Perfect	V-ing perfect
I cannot have ensured you cannot have ensured he cannot have ensured we cannot have ensured you cannot have ensured they cannot have ensured	I cannot have been ensuring you cannot have been ensuring he cannot have been ensuring we cannot have been ensuring you cannot have been ensuring they cannot have been ensuring

Interrogative form

Simple form	V-ing form
can I ensure? can you ensure? can he ensure? can we ensure? can you ensure? can they ensure?	can I be ensuring? can you be ensuring? can he be ensuring? can we be ensuring? can you be ensuring? can they be ensuring?
Perfect	V-ing perfect
can I have ensured? can you have ensured? can he have ensured? can we have ensured? can you have ensured? can they have ensured?	can I have been ensuring? can you have been ensuring? can he have been ensuring? can we have been ensuring? can you have been ensuring? can they have been ensuring?

Interro-negative form

Simple form	V-ing form
can I not ensure? can you not ensure? can he not ensure? can we not ensure? can you not ensure? can they not ensure?	can I not be ensuring? can you not be ensuring? can he not be ensuring? can we not be ensuring? can you not be ensuring? can they not be ensuring?
Perfect	V-ing perfect
can I not have ensured? can you not have ensured? can he not have ensured? can we not have ensured? can you not have ensured? can they not have ensured?	can I not have been ensuring? can you not have been ensuring? can he not have been ensuring? can we not have been ensuring? can you not have been ensuring? can they not have been ensuring?