ought to flash
Regular verb: flash - flashed- flashed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to flash
you ought to flash
she ought to flash
we ought to flash
you ought to flash
they ought to flash 	I ought to be flashing
you ought to be flashing
she ought to be flashing
we ought to be flashing
you ought to be flashing
they ought to be flashing	I ought to have flashed
you ought to have flashed
she ought to have flashed
we ought to have flashed
you ought to have flashed
they ought to have flashed	I ought to have been flashing
you ought to have been flashing
she ought to have been flashing
we ought to have been flashing
you ought to have been flashing
they ought to have been flashing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to flash
you oughtn't to flash
she oughtn't to flash
we oughtn't to flash
you oughtn't to flash
they oughtn't to flash 	I oughtn't to be flashing
you oughtn't to be flashing
she oughtn't to be flashing
we oughtn't to be flashing
you oughtn't to be flashing
they oughtn't to be flashing	I oughtn't to have flashed
you oughtn't to have flashed
she oughtn't to have flashed
we oughtn't to have flashed
you oughtn't to have flashed
they oughtn't to have flashed	I oughtn't to have been flashing
you oughtn't to have been flashing
she oughtn't to have been flashing
we oughtn't to have been flashing
you oughtn't to have been flashing
they oughtn't to have been flashing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I flash?
ought to you flash?
ought to she flash?
ought to we flash?
ought to you flash?
ought to they flash? 	ought to I be flashing?
ought to you be flashing?
ought to she be flashing?
ought to we be flashing?
ought to you be flashing?
ought to they be flashing? 	ought to I have flashed?
ought to you have flashed?
ought to she have flashed?
ought to we have flashed?
ought to you have flashed?
ought to they have flashed? 	ought to I have been flashing?
ought to you have been flashing?
ought to she have been flashing?
ought to we have been flashing?
ought to you have been flashing?
ought to they have been flashing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to flash?
oughtn't you to flash?
oughtn't she to flash?
oughtn't we to flash?
oughtn't you to flash?
oughtn't they to flash? 	oughtn't I to be flashing?
oughtn't you to be flashing?
oughtn't she to be flashing?
oughtn't we to be flashing?
oughtn't you to be flashing?
oughtn't they to be flashing? 	oughtn't I to have flashed?
oughtn't you to have flashed?
oughtn't she to have flashed?
oughtn't we to have flashed?
oughtn't you to have flashed?
oughtn't they to have flashed? 	oughtn't I to have been flashing?
oughtn't you to have been flashing?
oughtn't she to have been flashing?
oughtn't we to have been flashing?
oughtn't you to have been flashing?
oughtn't they to have been flashing?