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 ought not to crumble
you ought not to crumble
he ought not to crumble
we ought not to crumble
you ought not to crumble
they ought not to crumble 	I ought not to crumbling
you ought not to crumbling
he ought not to crumbling
we ought not to crumbling
you ought not to crumbling
they ought not to crumbling	I ought not to have crumbled
you ought not to have crumbled
he ought not to have crumbled
we ought not to have crumbled
you ought not to have crumbled
they ought not to have crumbled	I ought not to have been crumbling
you ought not to have been crumbling
he ought not to have been crumbling
we ought not to have been crumbling
you ought not to have been crumbling
they ought not 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 	
ought I not to crumble?
ought you not to crumble?
ought he not to crumble?
ought we not to crumble?
ought you not to crumble?
ought they not to crumble? 	ought I not to be crumbling?
ought you not to be crumbling?
ought he not to be crumbling?
ought we not to be crumbling?
ought you not to be crumbling?
ought they not to be crumbling? 	ought I not to have crumbled?
ought you not to have crumbled?
ought he not to have crumbled?
ought we not to have crumbled?
ought you not to have crumbled?
ought they not to have crumbled? 	ought I not to have been crumbling?
ought you not to have been crumbling?
ought he not to have been crumbling?
ought we not to have been crumbling?
ought you not to have been crumbling?
ought they not to have been crumbling?