can class
Regular verb: class - classed- classed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?