English verb conjugation
CAN TENON

Regular verb: tenon - tenoned - tenoned

Affirmation

Simple form	V-ing form
I can tenon you can tenon he can tenon we can tenon you can tenon they can tenon	I can be tenoning you can be tenoning he can be tenoning we can be tenoning you can be tenoning they can be tenoning
Perfect	V-ing perfect
I can have tenoned you can have tenoned he can have tenoned we can have tenoned you can have tenoned they can have tenoned	I can have been tenoning you can have been tenoning he can have been tenoning we can have been tenoning you can have been tenoning they can have been tenoning

Negation

Simple form	V-ing form
I cannot tenon you cannot tenon he cannot tenon we cannot tenon you cannot tenon they cannot tenon	I cannot be tenoning you cannot be tenoning he cannot be tenoning we cannot be tenoning you cannot be tenoning they cannot be tenoning
Perfect	V-ing perfect
I cannot have tenoned you cannot have tenoned he cannot have tenoned we cannot have tenoned you cannot have tenoned they cannot have tenoned	I cannot have been tenoning you cannot have been tenoning he cannot have been tenoning we cannot have been tenoning you cannot have been tenoning they cannot have been tenoning

Interrogative form

Simple form	V-ing form
can I tenon? can you tenon? can he tenon? can we tenon? can you tenon? can they tenon?	can I be tenoning? can you be tenoning? can he be tenoning? can we be tenoning? can you be tenoning? can they be tenoning?
Perfect	V-ing perfect
can I have tenoned? can you have tenoned? can he have tenoned? can we have tenoned? can you have tenoned? can they have tenoned?	can I have been tenoning? can you have been tenoning? can he have been tenoning? can we have been tenoning? can you have been tenoning? can they have been tenoning?

Interro-negative form

Simple form	V-ing form
can I not tenon? can you not tenon? can he not tenon? can we not tenon? can you not tenon? can they not tenon?	can I not be tenoning? can you not be tenoning? can he not be tenoning? can we not be tenoning? can you not be tenoning? can they not be tenoning?
Perfect	V-ing perfect
can I not have tenoned? can you not have tenoned? can he not have tenoned? can we not have tenoned? can you not have tenoned? can they not have tenoned?	can I not have been tenoning? can you not have been tenoning? can he not have been tenoning? can we not have been tenoning? can you not have been tenoning? can they not have been tenoning?