ought to riff
Verbo regular: riff - riffed- riffed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to riff
you ought to riff
he ought to riff
we ought to riff
you ought to riff
they ought to riff 	I ought to be riffing
you ought to be riffing
he ought to be riffing
we ought to be riffing
you ought to be riffing
they ought to be riffing	I ought to have riffed
you ought to have riffed
he ought to have riffed
we ought to have riffed
you ought to have riffed
they ought to have riffed	I ought to have been riffing
you ought to have been riffing
he ought to have been riffing
we ought to have been riffing
you ought to have been riffing
they ought to have been riffing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought not to riff
you ought not to riff
he ought not to riff
we ought not to riff
you ought not to riff
they ought not to riff 	I ought not to riffing
you ought not to riffing
he ought not to riffing
we ought not to riffing
you ought not to riffing
they ought not to riffing	I ought not to have riffed
you ought not to have riffed
he ought not to have riffed
we ought not to have riffed
you ought not to have riffed
they ought not to have riffed	I ought not to have been riffing
you ought not to have been riffing
he ought not to have been riffing
we ought not to have been riffing
you ought not to have been riffing
they ought not to have been riffing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I riff?
ought to you riff?
ought to he riff?
ought to we riff?
ought to you riff?
ought to they riff? 	ought to I be riffing?
ought to you be riffing?
ought to he be riffing?
ought to we be riffing?
ought to you be riffing?
ought to they be riffing? 	ought to I have riffed?
ought to you have riffed?
ought to he have riffed?
ought to we have riffed?
ought to you have riffed?
ought to they have riffed? 	ought to I have been riffing?
ought to you have been riffing?
ought to he have been riffing?
ought to we have been riffing?
ought to you have been riffing?
ought to they have been riffing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought I not to riff?
ought you not to riff?
ought he not to riff?
ought we not to riff?
ought you not to riff?
ought they not to riff? 	ought I not to be riffing?
ought you not to be riffing?
ought he not to be riffing?
ought we not to be riffing?
ought you not to be riffing?
ought they not to be riffing? 	ought I not to have riffed?
ought you not to have riffed?
ought he not to have riffed?
ought we not to have riffed?
ought you not to have riffed?
ought they not to have riffed? 	ought I not to have been riffing?
ought you not to have been riffing?
ought he not to have been riffing?
ought we not to have been riffing?
ought you not to have been riffing?
ought they not to have been riffing?