English verb conjugation
CAN PERDURE

Regular verb: perdure - perdured - perdured

Affirmation

Simple form	V-ing form
I can perdure you can perdure he can perdure we can perdure you can perdure they can perdure	I can be perduring you can be perduring he can be perduring we can be perduring you can be perduring they can be perduring
Perfect	V-ing perfect
I can have perdured you can have perdured he can have perdured we can have perdured you can have perdured they can have perdured	I can have been perduring you can have been perduring he can have been perduring we can have been perduring you can have been perduring they can have been perduring

Negation

Simple form	V-ing form
I can't perdure you can't perdure he can't perdure we can't perdure you can't perdure they can't perdure	I can't be perduring you can't be perduring he can't be perduring we can't be perduring you can't be perduring they can't be perduring
Perfect	V-ing perfect
I can't have perdured you can't have perdured he can't have perdured we can't have perdured you can't have perdured they can't have perdured	I can't have been perduring you can't have been perduring he can't have been perduring we can't have been perduring you can't have been perduring they can't have been perduring

Interrogative form

Simple form	V-ing form
can I perdure? can you perdure? can he perdure? can we perdure? can you perdure? can they perdure?	can I be perduring? can you be perduring? can he be perduring? can we be perduring? can you be perduring? can they be perduring?
Perfect	V-ing perfect
can I have perdured? can you have perdured? can he have perdured? can we have perdured? can you have perdured? can they have perdured?	can I have been perduring? can you have been perduring? can he have been perduring? can we have been perduring? can you have been perduring? can they have been perduring?

Interro-negative form

Simple form	V-ing form
can't I perdure? can't you perdure? can't he perdure? can't we perdure? can't you perdure? can't they perdure?	can't I be perduring? can't you be perduring? can't he be perduring? can't we be perduring? can't you be perduring? can't they be perduring?
Perfect	V-ing perfect
can't I have perdured? can't you have perdured? can't he have perdured? can't we have perdured? can't you have perdured? can't they have perdured?	can't I have been perduring? can't you have been perduring? can't he have been perduring? can't we have been perduring? can't you have been perduring? can't they have been perduring?