ought to crumble
Verbo regular: crumble - crumbled- crumbled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I ought to crumble
you ought to crumble
he ought to crumble
we ought to crumble
you ought to crumble
they ought to crumble 	I ought to be crumbling
you ought to be crumbling
he ought to be crumbling
we ought to be crumbling
you ought to be crumbling
they ought to be crumbling	I ought to have crumbled
you ought to have crumbled
he ought to have crumbled
we ought to have crumbled
you ought to have crumbled
they ought to have crumbled	I ought to have been crumbling
you ought to have been crumbling
he ought to have been crumbling
we ought to have been crumbling
you ought to have been crumbling
they ought to have been crumbling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I oughtn't to crumble
you oughtn't to crumble
he oughtn't to crumble
we oughtn't to crumble
you oughtn't to crumble
they oughtn't to crumble 	I oughtn't to be crumbling
you oughtn't to be crumbling
he oughtn't to be crumbling
we oughtn't to be crumbling
you oughtn't to be crumbling
they oughtn't to be crumbling	I oughtn't to have crumbled
you oughtn't to have crumbled
he oughtn't to have crumbled
we oughtn't to have crumbled
you oughtn't to have crumbled
they oughtn't to have crumbled	I oughtn't to have been crumbling
you oughtn't to have been crumbling
he oughtn't to have been crumbling
we oughtn't to have been crumbling
you oughtn't to have been crumbling
they oughtn't to have been crumbling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
ought to I crumble?
ought to you crumble?
ought to he crumble?
ought to we crumble?
ought to you crumble?
ought to they crumble? 	ought to I be crumbling?
ought to you be crumbling?
ought to he be crumbling?
ought to we be crumbling?
ought to you be crumbling?
ought to they be crumbling? 	ought to I have crumbled?
ought to you have crumbled?
ought to he have crumbled?
ought to we have crumbled?
ought to you have crumbled?
ought to they have crumbled? 	ought to I have been crumbling?
ought to you have been crumbling?
ought to he have been crumbling?
ought to we have been crumbling?
ought to you have been crumbling?
ought to they have been crumbling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
oughtn't I to crumble?
oughtn't you to crumble?
oughtn't he to crumble?
oughtn't we to crumble?
oughtn't you to crumble?
oughtn't they to crumble? 	oughtn't I to be crumbling?
oughtn't you to be crumbling?
oughtn't he to be crumbling?
oughtn't we to be crumbling?
oughtn't you to be crumbling?
oughtn't they to be crumbling? 	oughtn't I to have crumbled?
oughtn't you to have crumbled?
oughtn't he to have crumbled?
oughtn't we to have crumbled?
oughtn't you to have crumbled?
oughtn't they to have crumbled? 	oughtn't I to have been crumbling?
oughtn't you to have been crumbling?
oughtn't he to have been crumbling?
oughtn't we to have been crumbling?
oughtn't you to have been crumbling?
oughtn't they to have been crumbling?