ought to singe
Verbo regular: singe - singed- singed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to singe
you ought to singe
he ought to singe
we ought to singe
you ought to singe
they ought to singe 	I ought to be singing
you ought to be singing
he ought to be singing
we ought to be singing
you ought to be singing
they ought to be singing	I ought to have singed
you ought to have singed
he ought to have singed
we ought to have singed
you ought to have singed
they ought to have singed	I ought to have been singing
you ought to have been singing
he ought to have been singing
we ought to have been singing
you ought to have been singing
they ought to have been singing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought not to singe
you ought not to singe
he ought not to singe
we ought not to singe
you ought not to singe
they ought not to singe 	I ought not to singing
you ought not to singing
he ought not to singing
we ought not to singing
you ought not to singing
they ought not to singing	I ought not to have singed
you ought not to have singed
he ought not to have singed
we ought not to have singed
you ought not to have singed
they ought not to have singed	I ought not to have been singing
you ought not to have been singing
he ought not to have been singing
we ought not to have been singing
you ought not to have been singing
they ought not to have been singing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I singe?
ought to you singe?
ought to he singe?
ought to we singe?
ought to you singe?
ought to they singe? 	ought to I be singing?
ought to you be singing?
ought to he be singing?
ought to we be singing?
ought to you be singing?
ought to they be singing? 	ought to I have singed?
ought to you have singed?
ought to he have singed?
ought to we have singed?
ought to you have singed?
ought to they have singed? 	ought to I have been singing?
ought to you have been singing?
ought to he have been singing?
ought to we have been singing?
ought to you have been singing?
ought to they have been singing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought I not to singe?
ought you not to singe?
ought he not to singe?
ought we not to singe?
ought you not to singe?
ought they not to singe? 	ought I not to be singing?
ought you not to be singing?
ought he not to be singing?
ought we not to be singing?
ought you not to be singing?
ought they not to be singing? 	ought I not to have singed?
ought you not to have singed?
ought he not to have singed?
ought we not to have singed?
ought you not to have singed?
ought they not to have singed? 	ought I not to have been singing?
ought you not to have been singing?
ought he not to have been singing?
ought we not to have been singing?
ought you not to have been singing?
ought they not to have been singing?