English verb conjugation
CAN ENDURE

Regular verb: endure - endured - endured

Affirmation

Simple form	V-ing form
I can endure you can endure he can endure we can endure you can endure they can endure	I can be enduring you can be enduring he can be enduring we can be enduring you can be enduring they can be enduring
Perfect	V-ing perfect
I can have endured you can have endured he can have endured we can have endured you can have endured they can have endured	I can have been enduring you can have been enduring he can have been enduring we can have been enduring you can have been enduring they can have been enduring

Negation

Simple form	V-ing form
I cannot endure you cannot endure he cannot endure we cannot endure you cannot endure they cannot endure	I cannot be enduring you cannot be enduring he cannot be enduring we cannot be enduring you cannot be enduring they cannot be enduring
Perfect	V-ing perfect
I cannot have endured you cannot have endured he cannot have endured we cannot have endured you cannot have endured they cannot have endured	I cannot have been enduring you cannot have been enduring he cannot have been enduring we cannot have been enduring you cannot have been enduring they cannot have been enduring

Interrogative form

Simple form	V-ing form
can I endure? can you endure? can he endure? can we endure? can you endure? can they endure?	can I be enduring? can you be enduring? can he be enduring? can we be enduring? can you be enduring? can they be enduring?
Perfect	V-ing perfect
can I have endured? can you have endured? can he have endured? can we have endured? can you have endured? can they have endured?	can I have been enduring? can you have been enduring? can he have been enduring? can we have been enduring? can you have been enduring? can they have been enduring?

Interro-negative form

Simple form	V-ing form
can I not endure? can you not endure? can he not endure? can we not endure? can you not endure? can they not endure?	can I not be enduring? can you not be enduring? can he not be enduring? can we not be enduring? can you not be enduring? can they not be enduring?
Perfect	V-ing perfect
can I not have endured? can you not have endured? can he not have endured? can we not have endured? can you not have endured? can they not have endured?	can I not have been enduring? can you not have been enduring? can he not have been enduring? can we not have been enduring? can you not have been enduring? can they not have been enduring?