ought to tremble
Regular verb: tremble - trembled- trembled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to tremble
you ought to tremble
she ought to tremble
we ought to tremble
you ought to tremble
they ought to tremble 	I ought to be trembling
you ought to be trembling
she ought to be trembling
we ought to be trembling
you ought to be trembling
they ought to be trembling	I ought to have trembled
you ought to have trembled
she ought to have trembled
we ought to have trembled
you ought to have trembled
they ought to have trembled	I ought to have been trembling
you ought to have been trembling
she ought to have been trembling
we ought to have been trembling
you ought to have been trembling
they ought to have been trembling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to tremble
you oughtn't to tremble
she oughtn't to tremble
we oughtn't to tremble
you oughtn't to tremble
they oughtn't to tremble 	I oughtn't to be trembling
you oughtn't to be trembling
she oughtn't to be trembling
we oughtn't to be trembling
you oughtn't to be trembling
they oughtn't to be trembling	I oughtn't to have trembled
you oughtn't to have trembled
she oughtn't to have trembled
we oughtn't to have trembled
you oughtn't to have trembled
they oughtn't to have trembled	I oughtn't to have been trembling
you oughtn't to have been trembling
she oughtn't to have been trembling
we oughtn't to have been trembling
you oughtn't to have been trembling
they oughtn't to have been trembling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I tremble?
ought to you tremble?
ought to she tremble?
ought to we tremble?
ought to you tremble?
ought to they tremble? 	ought to I be trembling?
ought to you be trembling?
ought to she be trembling?
ought to we be trembling?
ought to you be trembling?
ought to they be trembling? 	ought to I have trembled?
ought to you have trembled?
ought to she have trembled?
ought to we have trembled?
ought to you have trembled?
ought to they have trembled? 	ought to I have been trembling?
ought to you have been trembling?
ought to she have been trembling?
ought to we have been trembling?
ought to you have been trembling?
ought to they have been trembling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to tremble?
oughtn't you to tremble?
oughtn't she to tremble?
oughtn't we to tremble?
oughtn't you to tremble?
oughtn't they to tremble? 	oughtn't I to be trembling?
oughtn't you to be trembling?
oughtn't she to be trembling?
oughtn't we to be trembling?
oughtn't you to be trembling?
oughtn't they to be trembling? 	oughtn't I to have trembled?
oughtn't you to have trembled?
oughtn't she to have trembled?
oughtn't we to have trembled?
oughtn't you to have trembled?
oughtn't they to have trembled? 	oughtn't I to have been trembling?
oughtn't you to have been trembling?
oughtn't she to have been trembling?
oughtn't we to have been trembling?
oughtn't you to have been trembling?
oughtn't they to have been trembling?