English verb conjugation
CAN VAPOUR

Regular verb: vapour - vapoured - vapoured

Affirmation

Simple form	V-ing form
I can vapour you can vapour he can vapour we can vapour you can vapour they can vapour	I can be vapouring you can be vapouring he can be vapouring we can be vapouring you can be vapouring they can be vapouring
Perfect	V-ing perfect
I can have vapoured you can have vapoured he can have vapoured we can have vapoured you can have vapoured they can have vapoured	I can have been vapouring you can have been vapouring he can have been vapouring we can have been vapouring you can have been vapouring they can have been vapouring

Negation

Simple form	V-ing form
I cannot vapour you cannot vapour he cannot vapour we cannot vapour you cannot vapour they cannot vapour	I cannot be vapouring you cannot be vapouring he cannot be vapouring we cannot be vapouring you cannot be vapouring they cannot be vapouring
Perfect	V-ing perfect
I cannot have vapoured you cannot have vapoured he cannot have vapoured we cannot have vapoured you cannot have vapoured they cannot have vapoured	I cannot have been vapouring you cannot have been vapouring he cannot have been vapouring we cannot have been vapouring you cannot have been vapouring they cannot have been vapouring

Interrogative form

Simple form	V-ing form
can I vapour? can you vapour? can he vapour? can we vapour? can you vapour? can they vapour?	can I be vapouring? can you be vapouring? can he be vapouring? can we be vapouring? can you be vapouring? can they be vapouring?
Perfect	V-ing perfect
can I have vapoured? can you have vapoured? can he have vapoured? can we have vapoured? can you have vapoured? can they have vapoured?	can I have been vapouring? can you have been vapouring? can he have been vapouring? can we have been vapouring? can you have been vapouring? can they have been vapouring?

Interro-negative form

Simple form	V-ing form
can I not vapour? can you not vapour? can he not vapour? can we not vapour? can you not vapour? can they not vapour?	can I not be vapouring? can you not be vapouring? can he not be vapouring? can we not be vapouring? can you not be vapouring? can they not be vapouring?
Perfect	V-ing perfect
can I not have vapoured? can you not have vapoured? can he not have vapoured? can we not have vapoured? can you not have vapoured? can they not have vapoured?	can I not have been vapouring? can you not have been vapouring? can he not have been vapouring? can we not have been vapouring? can you not have been vapouring? can they not have been vapouring?