ought to pipe
Verbo regular: pipe - piped- piped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought to pipe
you ought to pipe
he ought to pipe
we ought to pipe
you ought to pipe
they ought to pipe 	I ought to be piping
you ought to be piping
he ought to be piping
we ought to be piping
you ought to be piping
they ought to be piping	I ought to have piped
you ought to have piped
he ought to have piped
we ought to have piped
you ought to have piped
they ought to have piped	I ought to have been piping
you ought to have been piping
he ought to have been piping
we ought to have been piping
you ought to have been piping
they ought to have been piping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to pipe
you ought not to pipe
he ought not to pipe
we ought not to pipe
you ought not to pipe
they ought not to pipe 	I ought not to piping
you ought not to piping
he ought not to piping
we ought not to piping
you ought not to piping
they ought not to piping	I ought not to have piped
you ought not to have piped
he ought not to have piped
we ought not to have piped
you ought not to have piped
they ought not to have piped	I ought not to have been piping
you ought not to have been piping
he ought not to have been piping
we ought not to have been piping
you ought not to have been piping
they ought not to have been piping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought to I pipe?
ought to you pipe?
ought to he pipe?
ought to we pipe?
ought to you pipe?
ought to they pipe? 	ought to I be piping?
ought to you be piping?
ought to he be piping?
ought to we be piping?
ought to you be piping?
ought to they be piping? 	ought to I have piped?
ought to you have piped?
ought to he have piped?
ought to we have piped?
ought to you have piped?
ought to they have piped? 	ought to I have been piping?
ought to you have been piping?
ought to he have been piping?
ought to we have been piping?
ought to you have been piping?
ought to they have been piping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to pipe?
ought you not to pipe?
ought he not to pipe?
ought we not to pipe?
ought you not to pipe?
ought they not to pipe? 	ought I not to be piping?
ought you not to be piping?
ought he not to be piping?
ought we not to be piping?
ought you not to be piping?
ought they not to be piping? 	ought I not to have piped?
ought you not to have piped?
ought he not to have piped?
ought we not to have piped?
ought you not to have piped?
ought they not to have piped? 	ought I not to have been piping?
ought you not to have been piping?
ought he not to have been piping?
ought we not to have been piping?
ought you not to have been piping?
ought they not to have been piping?