can curb
Verbo regular: curb - curbed- curbed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can curb
you can curb
he can curb
we can curb
you can curb
they can curb 	I can be curbing
you can be curbing
he can be curbing
we can be curbing
you can be curbing
they can be curbing	I can have curbed
you can have curbed
he can have curbed
we can have curbed
you can have curbed
they can have curbed	I can have been curbing
you can have been curbing
he can have been curbing
we can have been curbing
you can have been curbing
they can have been curbing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't curb
you can't curb
he can't curb
we can't curb
you can't curb
they can't curb 	I can't be curbing
you can't be curbing
he can't be curbing
we can't be curbing
you can't be curbing
they can't be curbing	I can't have curbed
you can't have curbed
he can't have curbed
we can't have curbed
you can't have curbed
they can't have curbed	I can't have been curbing
you can't have been curbing
he can't have been curbing
we can't have been curbing
you can't have been curbing
they can't have been curbing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I curb?
can you curb?
can he curb?
can we curb?
can you curb?
can they curb? 	can I be curbing?
can you be curbing?
can he be curbing?
can we be curbing?
can you be curbing?
can they be curbing? 	can I have curbed?
can you have curbed?
can he have curbed?
can we have curbed?
can you have curbed?
can they have curbed? 	can I have been curbing?
can you have been curbing?
can he have been curbing?
can we have been curbing?
can you have been curbing?
can they have been curbing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I curb?
can't you curb?
can't he curb?
can't we curb?
can't you curb?
can't they curb? 	can't I be curbing?
can't you be curbing?
can't he be curbing?
can't we be curbing?
can't you be curbing?
can't they be curbing? 	can't I have curbed?
can't you have curbed?
can't he have curbed?
can't we have curbed?
can't you have curbed?
can't they have curbed? 	can't I have been curbing?
can't you have been curbing?
can't he have been curbing?
can't we have been curbing?
can't you have been curbing?
can't they have been curbing?