ought to piggyback
Regular verb: piggyback - piggybacked- piggybacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to piggyback
you ought to piggyback
he ought to piggyback
we ought to piggyback
you ought to piggyback
they ought to piggyback 	I ought to be piggybacking
you ought to be piggybacking
he ought to be piggybacking
we ought to be piggybacking
you ought to be piggybacking
they ought to be piggybacking	I ought to have piggybacked
you ought to have piggybacked
he ought to have piggybacked
we ought to have piggybacked
you ought to have piggybacked
they ought to have piggybacked	I ought to have been piggybacking
you ought to have been piggybacking
he ought to have been piggybacking
we ought to have been piggybacking
you ought to have been piggybacking
they ought to have been piggybacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to piggyback
you oughtn't to piggyback
he oughtn't to piggyback
we oughtn't to piggyback
you oughtn't to piggyback
they oughtn't to piggyback 	I oughtn't to be piggybacking
you oughtn't to be piggybacking
he oughtn't to be piggybacking
we oughtn't to be piggybacking
you oughtn't to be piggybacking
they oughtn't to be piggybacking	I oughtn't to have piggybacked
you oughtn't to have piggybacked
he oughtn't to have piggybacked
we oughtn't to have piggybacked
you oughtn't to have piggybacked
they oughtn't to have piggybacked	I oughtn't to have been piggybacking
you oughtn't to have been piggybacking
he oughtn't to have been piggybacking
we oughtn't to have been piggybacking
you oughtn't to have been piggybacking
they oughtn't to have been piggybacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I piggyback?
ought to you piggyback?
ought to he piggyback?
ought to we piggyback?
ought to you piggyback?
ought to they piggyback? 	ought to I be piggybacking?
ought to you be piggybacking?
ought to he be piggybacking?
ought to we be piggybacking?
ought to you be piggybacking?
ought to they be piggybacking? 	ought to I have piggybacked?
ought to you have piggybacked?
ought to he have piggybacked?
ought to we have piggybacked?
ought to you have piggybacked?
ought to they have piggybacked? 	ought to I have been piggybacking?
ought to you have been piggybacking?
ought to he have been piggybacking?
ought to we have been piggybacking?
ought to you have been piggybacking?
ought to they have been piggybacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to piggyback?
oughtn't you to piggyback?
oughtn't he to piggyback?
oughtn't we to piggyback?
oughtn't you to piggyback?
oughtn't they to piggyback? 	oughtn't I to be piggybacking?
oughtn't you to be piggybacking?
oughtn't he to be piggybacking?
oughtn't we to be piggybacking?
oughtn't you to be piggybacking?
oughtn't they to be piggybacking? 	oughtn't I to have piggybacked?
oughtn't you to have piggybacked?
oughtn't he to have piggybacked?
oughtn't we to have piggybacked?
oughtn't you to have piggybacked?
oughtn't they to have piggybacked? 	oughtn't I to have been piggybacking?
oughtn't you to have been piggybacking?
oughtn't he to have been piggybacking?
oughtn't we to have been piggybacking?
oughtn't you to have been piggybacking?
oughtn't they to have been piggybacking?