can pipe
Verbo regular: pipe - piped- piped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can pipe
you can pipe
he can pipe
we can pipe
you can pipe
they can pipe 	I can be piping
you can be piping
he can be piping
we can be piping
you can be piping
they can be piping	I can have piped
you can have piped
he can have piped
we can have piped
you can have piped
they can have piped	I can have been piping
you can have been piping
he can have been piping
we can have been piping
you can have been piping
they can have been piping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't pipe
you can't pipe
he can't pipe
we can't pipe
you can't pipe
they can't pipe 	I can't be piping
you can't be piping
he can't be piping
we can't be piping
you can't be piping
they can't be piping	I can't have piped
you can't have piped
he can't have piped
we can't have piped
you can't have piped
they can't have piped	I can't have been piping
you can't have been piping
he can't have been piping
we can't have been piping
you can't have been piping
they can't have been piping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I pipe?
can you pipe?
can he pipe?
can we pipe?
can you pipe?
can they pipe? 	can I be piping?
can you be piping?
can he be piping?
can we be piping?
can you be piping?
can they be piping? 	can I have piped?
can you have piped?
can he have piped?
can we have piped?
can you have piped?
can they have piped? 	can I have been piping?
can you have been piping?
can he have been piping?
can we have been piping?
can you have been piping?
can they have been piping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I pipe?
can't you pipe?
can't he pipe?
can't we pipe?
can't you pipe?
can't they pipe? 	can't I be piping?
can't you be piping?
can't he be piping?
can't we be piping?
can't you be piping?
can't they be piping? 	can't I have piped?
can't you have piped?
can't he have piped?
can't we have piped?
can't you have piped?
can't they have piped? 	can't I have been piping?
can't you have been piping?
can't he have been piping?
can't we have been piping?
can't you have been piping?
can't they have been piping?