can class
Verbo regular: class - classed- classed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can class
you can class
he can class
we can class
you can class
they can class 	I can be classing
you can be classing
he can be classing
we can be classing
you can be classing
they can be classing	I can have classed
you can have classed
he 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
he can have been classing
we can have been classing
you can have been classing
they can have been classing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't class
you can't class
he 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
he 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
he 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
he can't have been classing
we can't have been classing
you can't have been classing
they can't have been classing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I class?
can you class?
can he class?
can we class?
can you class?
can they class? 	can I be classing?
can you be classing?
can he be classing?
can we be classing?
can you be classing?
can they be classing? 	can I have classed?
can you have classed?
can he 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 he have been classing?
can we have been classing?
can you have been classing?
can they have been classing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I class?
can't you class?
can't he 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 he 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 he 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 he have been classing?
can't we have been classing?
can't you have been classing?
can't they have been classing?