ought to tongue
Regular verb: tongue - tongued- tongued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to tongue
you ought to tongue
he ought to tongue
we ought to tongue
you ought to tongue
they ought to tongue 	I ought to be tonguing
you ought to be tonguing
he ought to be tonguing
we ought to be tonguing
you ought to be tonguing
they ought to be tonguing	I ought to have tongued
you ought to have tongued
he ought to have tongued
we ought to have tongued
you ought to have tongued
they ought to have tongued	I ought to have been tonguing
you ought to have been tonguing
he ought to have been tonguing
we ought to have been tonguing
you ought to have been tonguing
they ought to have been tonguing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to tongue
you oughtn't to tongue
he oughtn't to tongue
we oughtn't to tongue
you oughtn't to tongue
they oughtn't to tongue 	I oughtn't to be tonguing
you oughtn't to be tonguing
he oughtn't to be tonguing
we oughtn't to be tonguing
you oughtn't to be tonguing
they oughtn't to be tonguing	I oughtn't to have tongued
you oughtn't to have tongued
he oughtn't to have tongued
we oughtn't to have tongued
you oughtn't to have tongued
they oughtn't to have tongued	I oughtn't to have been tonguing
you oughtn't to have been tonguing
he oughtn't to have been tonguing
we oughtn't to have been tonguing
you oughtn't to have been tonguing
they oughtn't to have been tonguing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I tongue?
ought to you tongue?
ought to he tongue?
ought to we tongue?
ought to you tongue?
ought to they tongue? 	ought to I be tonguing?
ought to you be tonguing?
ought to he be tonguing?
ought to we be tonguing?
ought to you be tonguing?
ought to they be tonguing? 	ought to I have tongued?
ought to you have tongued?
ought to he have tongued?
ought to we have tongued?
ought to you have tongued?
ought to they have tongued? 	ought to I have been tonguing?
ought to you have been tonguing?
ought to he have been tonguing?
ought to we have been tonguing?
ought to you have been tonguing?
ought to they have been tonguing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to tongue?
oughtn't you to tongue?
oughtn't he to tongue?
oughtn't we to tongue?
oughtn't you to tongue?
oughtn't they to tongue? 	oughtn't I to be tonguing?
oughtn't you to be tonguing?
oughtn't he to be tonguing?
oughtn't we to be tonguing?
oughtn't you to be tonguing?
oughtn't they to be tonguing? 	oughtn't I to have tongued?
oughtn't you to have tongued?
oughtn't he to have tongued?
oughtn't we to have tongued?
oughtn't you to have tongued?
oughtn't they to have tongued? 	oughtn't I to have been tonguing?
oughtn't you to have been tonguing?
oughtn't he to have been tonguing?
oughtn't we to have been tonguing?
oughtn't you to have been tonguing?
oughtn't they to have been tonguing?