English verb conjugation
CAN SMACK

Regular verb: smack - smacked - smacked

Affirmation

Simple form	V-ing form
I can smack you can smack he can smack we can smack you can smack they can smack	I can be smacking you can be smacking he can be smacking we can be smacking you can be smacking they can be smacking
Perfect	V-ing perfect
I can have smacked you can have smacked he can have smacked we can have smacked you can have smacked they can have smacked	I can have been smacking you can have been smacking he can have been smacking we can have been smacking you can have been smacking they can have been smacking

Negation

Simple form	V-ing form
I cannot smack you cannot smack he cannot smack we cannot smack you cannot smack they cannot smack	I cannot be smacking you cannot be smacking he cannot be smacking we cannot be smacking you cannot be smacking they cannot be smacking
Perfect	V-ing perfect
I cannot have smacked you cannot have smacked he cannot have smacked we cannot have smacked you cannot have smacked they cannot have smacked	I cannot have been smacking you cannot have been smacking he cannot have been smacking we cannot have been smacking you cannot have been smacking they cannot have been smacking

Interrogative form

Simple form	V-ing form
can I smack? can you smack? can he smack? can we smack? can you smack? can they smack?	can I be smacking? can you be smacking? can he be smacking? can we be smacking? can you be smacking? can they be smacking?
Perfect	V-ing perfect
can I have smacked? can you have smacked? can he have smacked? can we have smacked? can you have smacked? can they have smacked?	can I have been smacking? can you have been smacking? can he have been smacking? can we have been smacking? can you have been smacking? can they have been smacking?

Interro-negative form

Simple form	V-ing form
can I not smack? can you not smack? can he not smack? can we not smack? can you not smack? can they not smack?	can I not be smacking? can you not be smacking? can he not be smacking? can we not be smacking? can you not be smacking? can they not be smacking?
Perfect	V-ing perfect
can I not have smacked? can you not have smacked? can he not have smacked? can we not have smacked? can you not have smacked? can they not have smacked?	can I not have been smacking? can you not have been smacking? can he not have been smacking? can we not have been smacking? can you not have been smacking? can they not have been smacking?