ought to combust
Verbo regular: combust - combusted- combusted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to combust
you ought to combust
he ought to combust
we ought to combust
you ought to combust
they ought to combust 	I ought to be combusting
you ought to be combusting
he ought to be combusting
we ought to be combusting
you ought to be combusting
they ought to be combusting	I ought to have combusted
you ought to have combusted
he ought to have combusted
we ought to have combusted
you ought to have combusted
they ought to have combusted	I ought to have been combusting
you ought to have been combusting
he ought to have been combusting
we ought to have been combusting
you ought to have been combusting
they ought to have been combusting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought not to combust
you ought not to combust
he ought not to combust
we ought not to combust
you ought not to combust
they ought not to combust 	I ought not to combusting
you ought not to combusting
he ought not to combusting
we ought not to combusting
you ought not to combusting
they ought not to combusting	I ought not to have combusted
you ought not to have combusted
he ought not to have combusted
we ought not to have combusted
you ought not to have combusted
they ought not to have combusted	I ought not to have been combusting
you ought not to have been combusting
he ought not to have been combusting
we ought not to have been combusting
you ought not to have been combusting
they ought not to have been combusting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I combust?
ought to you combust?
ought to he combust?
ought to we combust?
ought to you combust?
ought to they combust? 	ought to I be combusting?
ought to you be combusting?
ought to he be combusting?
ought to we be combusting?
ought to you be combusting?
ought to they be combusting? 	ought to I have combusted?
ought to you have combusted?
ought to he have combusted?
ought to we have combusted?
ought to you have combusted?
ought to they have combusted? 	ought to I have been combusting?
ought to you have been combusting?
ought to he have been combusting?
ought to we have been combusting?
ought to you have been combusting?
ought to they have been combusting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought I not to combust?
ought you not to combust?
ought he not to combust?
ought we not to combust?
ought you not to combust?
ought they not to combust? 	ought I not to be combusting?
ought you not to be combusting?
ought he not to be combusting?
ought we not to be combusting?
ought you not to be combusting?
ought they not to be combusting? 	ought I not to have combusted?
ought you not to have combusted?
ought he not to have combusted?
ought we not to have combusted?
ought you not to have combusted?
ought they not to have combusted? 	ought I not to have been combusting?
ought you not to have been combusting?
ought he not to have been combusting?
ought we not to have been combusting?
ought you not to have been combusting?
ought they not to have been combusting?