ought to laugh
Regular verb: laugh - laughed- laughed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to laugh
you ought to laugh
she ought to laugh
we ought to laugh
you ought to laugh
they ought to laugh 	I ought to be laughing
you ought to be laughing
she ought to be laughing
we ought to be laughing
you ought to be laughing
they ought to be laughing	I ought to have laughed
you ought to have laughed
she ought to have laughed
we ought to have laughed
you ought to have laughed
they ought to have laughed	I ought to have been laughing
you ought to have been laughing
she ought to have been laughing
we ought to have been laughing
you ought to have been laughing
they ought to have been laughing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to laugh
you oughtn't to laugh
she oughtn't to laugh
we oughtn't to laugh
you oughtn't to laugh
they oughtn't to laugh 	I oughtn't to be laughing
you oughtn't to be laughing
she oughtn't to be laughing
we oughtn't to be laughing
you oughtn't to be laughing
they oughtn't to be laughing	I oughtn't to have laughed
you oughtn't to have laughed
she oughtn't to have laughed
we oughtn't to have laughed
you oughtn't to have laughed
they oughtn't to have laughed	I oughtn't to have been laughing
you oughtn't to have been laughing
she oughtn't to have been laughing
we oughtn't to have been laughing
you oughtn't to have been laughing
they oughtn't to have been laughing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I laugh?
ought to you laugh?
ought to she laugh?
ought to we laugh?
ought to you laugh?
ought to they laugh? 	ought to I be laughing?
ought to you be laughing?
ought to she be laughing?
ought to we be laughing?
ought to you be laughing?
ought to they be laughing? 	ought to I have laughed?
ought to you have laughed?
ought to she have laughed?
ought to we have laughed?
ought to you have laughed?
ought to they have laughed? 	ought to I have been laughing?
ought to you have been laughing?
ought to she have been laughing?
ought to we have been laughing?
ought to you have been laughing?
ought to they have been laughing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to laugh?
oughtn't you to laugh?
oughtn't she to laugh?
oughtn't we to laugh?
oughtn't you to laugh?
oughtn't they to laugh? 	oughtn't I to be laughing?
oughtn't you to be laughing?
oughtn't she to be laughing?
oughtn't we to be laughing?
oughtn't you to be laughing?
oughtn't they to be laughing? 	oughtn't I to have laughed?
oughtn't you to have laughed?
oughtn't she to have laughed?
oughtn't we to have laughed?
oughtn't you to have laughed?
oughtn't they to have laughed? 	oughtn't I to have been laughing?
oughtn't you to have been laughing?
oughtn't she to have been laughing?
oughtn't we to have been laughing?
oughtn't you to have been laughing?
oughtn't they to have been laughing?