ought to boil
Verbo regular: boil - boiled- boiled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to boil
you ought to boil
she ought to boil
we ought to boil
you ought to boil
they ought to boil 	I ought to be boiling
you ought to be boiling
she ought to be boiling
we ought to be boiling
you ought to be boiling
they ought to be boiling	I ought to have boiled
you ought to have boiled
she ought to have boiled
we ought to have boiled
you ought to have boiled
they ought to have boiled	I ought to have been boiling
you ought to have been boiling
she ought to have been boiling
we ought to have been boiling
you ought to have been boiling
they ought to have been boiling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought not to boil
you ought not to boil
she ought not to boil
we ought not to boil
you ought not to boil
they ought not to boil 	I ought not to boiling
you ought not to boiling
she ought not to boiling
we ought not to boiling
you ought not to boiling
they ought not to boiling	I ought not to have boiled
you ought not to have boiled
she ought not to have boiled
we ought not to have boiled
you ought not to have boiled
they ought not to have boiled	I ought not to have been boiling
you ought not to have been boiling
she ought not to have been boiling
we ought not to have been boiling
you ought not to have been boiling
they ought not to have been boiling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I boil?
ought to you boil?
ought to she boil?
ought to we boil?
ought to you boil?
ought to they boil? 	ought to I be boiling?
ought to you be boiling?
ought to she be boiling?
ought to we be boiling?
ought to you be boiling?
ought to they be boiling? 	ought to I have boiled?
ought to you have boiled?
ought to she have boiled?
ought to we have boiled?
ought to you have boiled?
ought to they have boiled? 	ought to I have been boiling?
ought to you have been boiling?
ought to she have been boiling?
ought to we have been boiling?
ought to you have been boiling?
ought to they have been boiling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought I not to boil?
ought you not to boil?
ought she not to boil?
ought we not to boil?
ought you not to boil?
ought they not to boil? 	ought I not to be boiling?
ought you not to be boiling?
ought she not to be boiling?
ought we not to be boiling?
ought you not to be boiling?
ought they not to be boiling? 	ought I not to have boiled?
ought you not to have boiled?
ought she not to have boiled?
ought we not to have boiled?
ought you not to have boiled?
ought they not to have boiled? 	ought I not to have been boiling?
ought you not to have been boiling?
ought she not to have been boiling?
ought we not to have been boiling?
ought you not to have been boiling?
ought they not to have been boiling?