ought to froth
Verbo regular: froth - frothed- frothed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to froth
you ought to froth
he ought to froth
we ought to froth
you ought to froth
they ought to froth 	I ought to be frothing
you ought to be frothing
he ought to be frothing
we ought to be frothing
you ought to be frothing
they ought to be frothing	I ought to have frothed
you ought to have frothed
he ought to have frothed
we ought to have frothed
you ought to have frothed
they ought to have frothed	I ought to have been frothing
you ought to have been frothing
he ought to have been frothing
we ought to have been frothing
you ought to have been frothing
they ought to have been frothing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought not to froth
you ought not to froth
he ought not to froth
we ought not to froth
you ought not to froth
they ought not to froth 	I ought not to frothing
you ought not to frothing
he ought not to frothing
we ought not to frothing
you ought not to frothing
they ought not to frothing	I ought not to have frothed
you ought not to have frothed
he ought not to have frothed
we ought not to have frothed
you ought not to have frothed
they ought not to have frothed	I ought not to have been frothing
you ought not to have been frothing
he ought not to have been frothing
we ought not to have been frothing
you ought not to have been frothing
they ought not to have been frothing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I froth?
ought to you froth?
ought to he froth?
ought to we froth?
ought to you froth?
ought to they froth? 	ought to I be frothing?
ought to you be frothing?
ought to he be frothing?
ought to we be frothing?
ought to you be frothing?
ought to they be frothing? 	ought to I have frothed?
ought to you have frothed?
ought to he have frothed?
ought to we have frothed?
ought to you have frothed?
ought to they have frothed? 	ought to I have been frothing?
ought to you have been frothing?
ought to he have been frothing?
ought to we have been frothing?
ought to you have been frothing?
ought to they have been frothing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought I not to froth?
ought you not to froth?
ought he not to froth?
ought we not to froth?
ought you not to froth?
ought they not to froth? 	ought I not to be frothing?
ought you not to be frothing?
ought he not to be frothing?
ought we not to be frothing?
ought you not to be frothing?
ought they not to be frothing? 	ought I not to have frothed?
ought you not to have frothed?
ought he not to have frothed?
ought we not to have frothed?
ought you not to have frothed?
ought they not to have frothed? 	ought I not to have been frothing?
ought you not to have been frothing?
ought he not to have been frothing?
ought we not to have been frothing?
ought you not to have been frothing?
ought they not to have been frothing?