English verb conjugation
CAN CURE

Regular verb: cure - cured - cured

Affirmation

Simple form	V-ing form
I can cure you can cure he can cure we can cure you can cure they can cure	I can be curing you can be curing he can be curing we can be curing you can be curing they can be curing
Perfect	V-ing perfect
I can have cured you can have cured he can have cured we can have cured you can have cured they can have cured	I can have been curing you can have been curing he can have been curing we can have been curing you can have been curing they can have been curing

Negation

Simple form	V-ing form
I cannot cure you cannot cure he cannot cure we cannot cure you cannot cure they cannot cure	I cannot be curing you cannot be curing he cannot be curing we cannot be curing you cannot be curing they cannot be curing
Perfect	V-ing perfect
I cannot have cured you cannot have cured he cannot have cured we cannot have cured you cannot have cured they cannot have cured	I cannot have been curing you cannot have been curing he cannot have been curing we cannot have been curing you cannot have been curing they cannot have been curing

Interrogative form

Simple form	V-ing form
can I cure? can you cure? can he cure? can we cure? can you cure? can they cure?	can I be curing? can you be curing? can he be curing? can we be curing? can you be curing? can they be curing?
Perfect	V-ing perfect
can I have cured? can you have cured? can he have cured? can we have cured? can you have cured? can they have cured?	can I have been curing? can you have been curing? can he have been curing? can we have been curing? can you have been curing? can they have been curing?

Interro-negative form

Simple form	V-ing form
can I not cure? can you not cure? can he not cure? can we not cure? can you not cure? can they not cure?	can I not be curing? can you not be curing? can he not be curing? can we not be curing? can you not be curing? can they not be curing?
Perfect	V-ing perfect
can I not have cured? can you not have cured? can he not have cured? can we not have cured? can you not have cured? can they not have cured?	can I not have been curing? can you not have been curing? can he not have been curing? can we not have been curing? can you not have been curing? can they not have been curing?