ought to fast
Regular verb: fast - fasted- fasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to fast
you ought to fast
he ought to fast
we ought to fast
you ought to fast
they ought to fast 	I ought to be fasting
you ought to be fasting
he ought to be fasting
we ought to be fasting
you ought to be fasting
they ought to be fasting	I ought to have fasted
you ought to have fasted
he ought to have fasted
we ought to have fasted
you ought to have fasted
they ought to have fasted	I ought to have been fasting
you ought to have been fasting
he ought to have been fasting
we ought to have been fasting
you ought to have been fasting
they ought to have been fasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to fast
you oughtn't to fast
he oughtn't to fast
we oughtn't to fast
you oughtn't to fast
they oughtn't to fast 	I oughtn't to be fasting
you oughtn't to be fasting
he oughtn't to be fasting
we oughtn't to be fasting
you oughtn't to be fasting
they oughtn't to be fasting	I oughtn't to have fasted
you oughtn't to have fasted
he oughtn't to have fasted
we oughtn't to have fasted
you oughtn't to have fasted
they oughtn't to have fasted	I oughtn't to have been fasting
you oughtn't to have been fasting
he oughtn't to have been fasting
we oughtn't to have been fasting
you oughtn't to have been fasting
they oughtn't to have been fasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I fast?
ought to you fast?
ought to he fast?
ought to we fast?
ought to you fast?
ought to they fast? 	ought to I be fasting?
ought to you be fasting?
ought to he be fasting?
ought to we be fasting?
ought to you be fasting?
ought to they be fasting? 	ought to I have fasted?
ought to you have fasted?
ought to he have fasted?
ought to we have fasted?
ought to you have fasted?
ought to they have fasted? 	ought to I have been fasting?
ought to you have been fasting?
ought to he have been fasting?
ought to we have been fasting?
ought to you have been fasting?
ought to they have been fasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to fast?
oughtn't you to fast?
oughtn't he to fast?
oughtn't we to fast?
oughtn't you to fast?
oughtn't they to fast? 	oughtn't I to be fasting?
oughtn't you to be fasting?
oughtn't he to be fasting?
oughtn't we to be fasting?
oughtn't you to be fasting?
oughtn't they to be fasting? 	oughtn't I to have fasted?
oughtn't you to have fasted?
oughtn't he to have fasted?
oughtn't we to have fasted?
oughtn't you to have fasted?
oughtn't they to have fasted? 	oughtn't I to have been fasting?
oughtn't you to have been fasting?
oughtn't he to have been fasting?
oughtn't we to have been fasting?
oughtn't you to have been fasting?
oughtn't they to have been fasting?