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
she can curb
we can curb
you can curb
they can curb 	I can be curbing
you can be curbing
she can be curbing
we can be curbing
you can be curbing
they can be curbing	I can have curbed
you can have curbed
she 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
she 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 cannot curb
you cannot curb
she cannot curb
we cannot curb
you cannot curb
they cannot curb 	I cannot be curbing
you cannot be curbing
she cannot be curbing
we cannot be curbing
you cannot be curbing
they cannot be curbing	I cannot have curbed
you cannot have curbed
she cannot have curbed
we cannot have curbed
you cannot have curbed
they cannot have curbed	I cannot have been curbing
you cannot have been curbing
she cannot have been curbing
we cannot have been curbing
you cannot have been curbing
they cannot have been curbing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I curb?
can you curb?
can she curb?
can we curb?
can you curb?
can they curb? 	can I be curbing?
can you be curbing?
can she be curbing?
can we be curbing?
can you be curbing?
can they be curbing? 	can I have curbed?
can you have curbed?
can she 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 she 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 I not curb?
can you not curb?
can she not curb?
can we not curb?
can you not curb?
can they not curb? 	can I not be curbing?
can you not be curbing?
can she not be curbing?
can we not be curbing?
can you not be curbing?
can they not be curbing? 	can I not have curbed?
can you not have curbed?
can she not have curbed?
can we not have curbed?
can you not have curbed?
can they not have curbed? 	can I not have been curbing?
can you not have been curbing?
can she not have been curbing?
can we not have been curbing?
can you not have been curbing?
can they not have been curbing?