ought to gnash
Regular verb: gnash - gnashed- gnashed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to gnash
you ought to gnash
he ought to gnash
we ought to gnash
you ought to gnash
they ought to gnash 	I ought to be gnashing
you ought to be gnashing
he ought to be gnashing
we ought to be gnashing
you ought to be gnashing
they ought to be gnashing	I ought to have gnashed
you ought to have gnashed
he ought to have gnashed
we ought to have gnashed
you ought to have gnashed
they ought to have gnashed	I ought to have been gnashing
you ought to have been gnashing
he ought to have been gnashing
we ought to have been gnashing
you ought to have been gnashing
they ought to have been gnashing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to gnash
you oughtn't to gnash
he oughtn't to gnash
we oughtn't to gnash
you oughtn't to gnash
they oughtn't to gnash 	I oughtn't to be gnashing
you oughtn't to be gnashing
he oughtn't to be gnashing
we oughtn't to be gnashing
you oughtn't to be gnashing
they oughtn't to be gnashing	I oughtn't to have gnashed
you oughtn't to have gnashed
he oughtn't to have gnashed
we oughtn't to have gnashed
you oughtn't to have gnashed
they oughtn't to have gnashed	I oughtn't to have been gnashing
you oughtn't to have been gnashing
he oughtn't to have been gnashing
we oughtn't to have been gnashing
you oughtn't to have been gnashing
they oughtn't to have been gnashing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I gnash?
ought to you gnash?
ought to he gnash?
ought to we gnash?
ought to you gnash?
ought to they gnash? 	ought to I be gnashing?
ought to you be gnashing?
ought to he be gnashing?
ought to we be gnashing?
ought to you be gnashing?
ought to they be gnashing? 	ought to I have gnashed?
ought to you have gnashed?
ought to he have gnashed?
ought to we have gnashed?
ought to you have gnashed?
ought to they have gnashed? 	ought to I have been gnashing?
ought to you have been gnashing?
ought to he have been gnashing?
ought to we have been gnashing?
ought to you have been gnashing?
ought to they have been gnashing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to gnash?
oughtn't you to gnash?
oughtn't he to gnash?
oughtn't we to gnash?
oughtn't you to gnash?
oughtn't they to gnash? 	oughtn't I to be gnashing?
oughtn't you to be gnashing?
oughtn't he to be gnashing?
oughtn't we to be gnashing?
oughtn't you to be gnashing?
oughtn't they to be gnashing? 	oughtn't I to have gnashed?
oughtn't you to have gnashed?
oughtn't he to have gnashed?
oughtn't we to have gnashed?
oughtn't you to have gnashed?
oughtn't they to have gnashed? 	oughtn't I to have been gnashing?
oughtn't you to have been gnashing?
oughtn't he to have been gnashing?
oughtn't we to have been gnashing?
oughtn't you to have been gnashing?
oughtn't they to have been gnashing?