English verb conjugation
CAN SMACK

Regular verb: smack - smacked - smacked

Affirmation

Simple form	V-ing form
I can smack you can smack she can smack we can smack you can smack they can smack	I can be smacking you can be smacking she 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 she 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 she 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 can't smack you can't smack she can't smack we can't smack you can't smack they can't smack	I can't be smacking you can't be smacking she can't be smacking we can't be smacking you can't be smacking they can't be smacking
Perfect	V-ing perfect
I can't have smacked you can't have smacked she can't have smacked we can't have smacked you can't have smacked they can't have smacked	I can't have been smacking you can't have been smacking she can't have been smacking we can't have been smacking you can't have been smacking they can't have been smacking

Interrogative form

Simple form	V-ing form
can I smack? can you smack? can she smack? can we smack? can you smack? can they smack?	can I be smacking? can you be smacking? can she 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 she 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 she 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't I smack? can't you smack? can't she smack? can't we smack? can't you smack? can't they smack?	can't I be smacking? can't you be smacking? can't she be smacking? can't we be smacking? can't you be smacking? can't they be smacking?
Perfect	V-ing perfect
can't I have smacked? can't you have smacked? can't she have smacked? can't we have smacked? can't you have smacked? can't they have smacked?	can't I have been smacking? can't you have been smacking? can't she have been smacking? can't we have been smacking? can't you have been smacking? can't they have been smacking?