English verb conjugation
CAN CLASS

Regular verb: class - classed - classed

Affirmation

Simple form	V-ing form
I can class you can class she can class we can class you can class they can class	I can be classing you can be classing she can be classing we can be classing you can be classing they can be classing
Perfect	V-ing perfect
I can have classed you can have classed she can have classed we can have classed you can have classed they can have classed	I can have been classing you can have been classing she can have been classing we can have been classing you can have been classing they can have been classing

Negation

Simple form	V-ing form
I can't class you can't class she can't class we can't class you can't class they can't class	I can't be classing you can't be classing she can't be classing we can't be classing you can't be classing they can't be classing
Perfect	V-ing perfect
I can't have classed you can't have classed she can't have classed we can't have classed you can't have classed they can't have classed	I can't have been classing you can't have been classing she can't have been classing we can't have been classing you can't have been classing they can't have been classing

Interrogative form

Simple form	V-ing form
can I class? can you class? can she class? can we class? can you class? can they class?	can I be classing? can you be classing? can she be classing? can we be classing? can you be classing? can they be classing?
Perfect	V-ing perfect
can I have classed? can you have classed? can she have classed? can we have classed? can you have classed? can they have classed?	can I have been classing? can you have been classing? can she have been classing? can we have been classing? can you have been classing? can they have been classing?

Interro-negative form

Simple form	V-ing form
can't I class? can't you class? can't she class? can't we class? can't you class? can't they class?	can't I be classing? can't you be classing? can't she be classing? can't we be classing? can't you be classing? can't they be classing?
Perfect	V-ing perfect
can't I have classed? can't you have classed? can't she have classed? can't we have classed? can't you have classed? can't they have classed?	can't I have been classing? can't you have been classing? can't she have been classing? can't we have been classing? can't you have been classing? can't they have been classing?