English verb conjugation
CAN ENSURE

Regular verb: ensure - ensured - ensured

Affirmation

Simple form	V-ing form
I can ensure you can ensure she can ensure we can ensure you can ensure they can ensure	I can be ensuring you can be ensuring she 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 she 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 she 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 she cannot ensure we cannot ensure you cannot ensure they cannot ensure	I cannot be ensuring you cannot be ensuring she 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 she 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 she 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 she ensure? can we ensure? can you ensure? can they ensure?	can I be ensuring? can you be ensuring? can she 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 she 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 she 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 she 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 she 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 she 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 she not have been ensuring? can we not have been ensuring? can you not have been ensuring? can they not have been ensuring?