ought to teach
Irregular verb: teach - taught- taught

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to teach
you ought to teach
he ought to teach
we ought to teach
you ought to teach
they ought to teach 	I ought to be teaching
you ought to be teaching
he ought to be teaching
we ought to be teaching
you ought to be teaching
they ought to be teaching	I ought to have taught
you ought to have taught
he ought to have taught
we ought to have taught
you ought to have taught
they ought to have taught	I ought to have been teaching
you ought to have been teaching
he ought to have been teaching
we ought to have been teaching
you ought to have been teaching
they ought to have been teaching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to teach
you oughtn't to teach
he oughtn't to teach
we oughtn't to teach
you oughtn't to teach
they oughtn't to teach 	I oughtn't to be teaching
you oughtn't to be teaching
he oughtn't to be teaching
we oughtn't to be teaching
you oughtn't to be teaching
they oughtn't to be teaching	I oughtn't to have taught
you oughtn't to have taught
he oughtn't to have taught
we oughtn't to have taught
you oughtn't to have taught
they oughtn't to have taught	I oughtn't to have been teaching
you oughtn't to have been teaching
he oughtn't to have been teaching
we oughtn't to have been teaching
you oughtn't to have been teaching
they oughtn't to have been teaching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I teach?
ought to you teach?
ought to he teach?
ought to we teach?
ought to you teach?
ought to they teach? 	ought to I be teaching?
ought to you be teaching?
ought to he be teaching?
ought to we be teaching?
ought to you be teaching?
ought to they be teaching? 	ought to I have taught?
ought to you have taught?
ought to he have taught?
ought to we have taught?
ought to you have taught?
ought to they have taught? 	ought to I have been teaching?
ought to you have been teaching?
ought to he have been teaching?
ought to we have been teaching?
ought to you have been teaching?
ought to they have been teaching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to teach?
oughtn't you to teach?
oughtn't he to teach?
oughtn't we to teach?
oughtn't you to teach?
oughtn't they to teach? 	oughtn't I to be teaching?
oughtn't you to be teaching?
oughtn't he to be teaching?
oughtn't we to be teaching?
oughtn't you to be teaching?
oughtn't they to be teaching? 	oughtn't I to have taught?
oughtn't you to have taught?
oughtn't he to have taught?
oughtn't we to have taught?
oughtn't you to have taught?
oughtn't they to have taught? 	oughtn't I to have been teaching?
oughtn't you to have been teaching?
oughtn't he to have been teaching?
oughtn't we to have been teaching?
oughtn't you to have been teaching?
oughtn't they to have been teaching?