ought to guess
Regular verb: guess - guessed- guessed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to guess
you ought to guess
she ought to guess
we ought to guess
you ought to guess
they ought to guess 	I ought to be guessing
you ought to be guessing
she ought to be guessing
we ought to be guessing
you ought to be guessing
they ought to be guessing	I ought to have guessed
you ought to have guessed
she ought to have guessed
we ought to have guessed
you ought to have guessed
they ought to have guessed	I ought to have been guessing
you ought to have been guessing
she ought to have been guessing
we ought to have been guessing
you ought to have been guessing
they ought to have been guessing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to guess
you oughtn't to guess
she oughtn't to guess
we oughtn't to guess
you oughtn't to guess
they oughtn't to guess 	I oughtn't to be guessing
you oughtn't to be guessing
she oughtn't to be guessing
we oughtn't to be guessing
you oughtn't to be guessing
they oughtn't to be guessing	I oughtn't to have guessed
you oughtn't to have guessed
she oughtn't to have guessed
we oughtn't to have guessed
you oughtn't to have guessed
they oughtn't to have guessed	I oughtn't to have been guessing
you oughtn't to have been guessing
she oughtn't to have been guessing
we oughtn't to have been guessing
you oughtn't to have been guessing
they oughtn't to have been guessing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I guess?
ought to you guess?
ought to she guess?
ought to we guess?
ought to you guess?
ought to they guess? 	ought to I be guessing?
ought to you be guessing?
ought to she be guessing?
ought to we be guessing?
ought to you be guessing?
ought to they be guessing? 	ought to I have guessed?
ought to you have guessed?
ought to she have guessed?
ought to we have guessed?
ought to you have guessed?
ought to they have guessed? 	ought to I have been guessing?
ought to you have been guessing?
ought to she have been guessing?
ought to we have been guessing?
ought to you have been guessing?
ought to they have been guessing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to guess?
oughtn't you to guess?
oughtn't she to guess?
oughtn't we to guess?
oughtn't you to guess?
oughtn't they to guess? 	oughtn't I to be guessing?
oughtn't you to be guessing?
oughtn't she to be guessing?
oughtn't we to be guessing?
oughtn't you to be guessing?
oughtn't they to be guessing? 	oughtn't I to have guessed?
oughtn't you to have guessed?
oughtn't she to have guessed?
oughtn't we to have guessed?
oughtn't you to have guessed?
oughtn't they to have guessed? 	oughtn't I to have been guessing?
oughtn't you to have been guessing?
oughtn't she to have been guessing?
oughtn't we to have been guessing?
oughtn't you to have been guessing?
oughtn't they to have been guessing?