ought to giggle
Regular verb: giggle - giggled- giggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to giggle
you ought to giggle
she ought to giggle
we ought to giggle
you ought to giggle
they ought to giggle 	I ought to be giggling
you ought to be giggling
she ought to be giggling
we ought to be giggling
you ought to be giggling
they ought to be giggling	I ought to have giggled
you ought to have giggled
she ought to have giggled
we ought to have giggled
you ought to have giggled
they ought to have giggled	I ought to have been giggling
you ought to have been giggling
she ought to have been giggling
we ought to have been giggling
you ought to have been giggling
they ought to have been giggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to giggle
you oughtn't to giggle
she oughtn't to giggle
we oughtn't to giggle
you oughtn't to giggle
they oughtn't to giggle 	I oughtn't to be giggling
you oughtn't to be giggling
she oughtn't to be giggling
we oughtn't to be giggling
you oughtn't to be giggling
they oughtn't to be giggling	I oughtn't to have giggled
you oughtn't to have giggled
she oughtn't to have giggled
we oughtn't to have giggled
you oughtn't to have giggled
they oughtn't to have giggled	I oughtn't to have been giggling
you oughtn't to have been giggling
she oughtn't to have been giggling
we oughtn't to have been giggling
you oughtn't to have been giggling
they oughtn't to have been giggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I giggle?
ought to you giggle?
ought to she giggle?
ought to we giggle?
ought to you giggle?
ought to they giggle? 	ought to I be giggling?
ought to you be giggling?
ought to she be giggling?
ought to we be giggling?
ought to you be giggling?
ought to they be giggling? 	ought to I have giggled?
ought to you have giggled?
ought to she have giggled?
ought to we have giggled?
ought to you have giggled?
ought to they have giggled? 	ought to I have been giggling?
ought to you have been giggling?
ought to she have been giggling?
ought to we have been giggling?
ought to you have been giggling?
ought to they have been giggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to giggle?
oughtn't you to giggle?
oughtn't she to giggle?
oughtn't we to giggle?
oughtn't you to giggle?
oughtn't they to giggle? 	oughtn't I to be giggling?
oughtn't you to be giggling?
oughtn't she to be giggling?
oughtn't we to be giggling?
oughtn't you to be giggling?
oughtn't they to be giggling? 	oughtn't I to have giggled?
oughtn't you to have giggled?
oughtn't she to have giggled?
oughtn't we to have giggled?
oughtn't you to have giggled?
oughtn't they to have giggled? 	oughtn't I to have been giggling?
oughtn't you to have been giggling?
oughtn't she to have been giggling?
oughtn't we to have been giggling?
oughtn't you to have been giggling?
oughtn't they to have been giggling?