ought to gratulate
Regular verb: gratulate - gratulated- gratulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to gratulate
you ought to gratulate
she ought to gratulate
we ought to gratulate
you ought to gratulate
they ought to gratulate 	I ought to be gratulating
you ought to be gratulating
she ought to be gratulating
we ought to be gratulating
you ought to be gratulating
they ought to be gratulating	I ought to have gratulated
you ought to have gratulated
she ought to have gratulated
we ought to have gratulated
you ought to have gratulated
they ought to have gratulated	I ought to have been gratulating
you ought to have been gratulating
she ought to have been gratulating
we ought to have been gratulating
you ought to have been gratulating
they ought to have been gratulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to gratulate
you ought not to gratulate
she ought not to gratulate
we ought not to gratulate
you ought not to gratulate
they ought not to gratulate 	I ought not to gratulating
you ought not to gratulating
she ought not to gratulating
we ought not to gratulating
you ought not to gratulating
they ought not to gratulating	I ought not to have gratulated
you ought not to have gratulated
she ought not to have gratulated
we ought not to have gratulated
you ought not to have gratulated
they ought not to have gratulated	I ought not to have been gratulating
you ought not to have been gratulating
she ought not to have been gratulating
we ought not to have been gratulating
you ought not to have been gratulating
they ought not to have been gratulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I gratulate?
ought to you gratulate?
ought to she gratulate?
ought to we gratulate?
ought to you gratulate?
ought to they gratulate? 	ought to I be gratulating?
ought to you be gratulating?
ought to she be gratulating?
ought to we be gratulating?
ought to you be gratulating?
ought to they be gratulating? 	ought to I have gratulated?
ought to you have gratulated?
ought to she have gratulated?
ought to we have gratulated?
ought to you have gratulated?
ought to they have gratulated? 	ought to I have been gratulating?
ought to you have been gratulating?
ought to she have been gratulating?
ought to we have been gratulating?
ought to you have been gratulating?
ought to they have been gratulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to gratulate?
ought you not to gratulate?
ought she not to gratulate?
ought we not to gratulate?
ought you not to gratulate?
ought they not to gratulate? 	ought I not to be gratulating?
ought you not to be gratulating?
ought she not to be gratulating?
ought we not to be gratulating?
ought you not to be gratulating?
ought they not to be gratulating? 	ought I not to have gratulated?
ought you not to have gratulated?
ought she not to have gratulated?
ought we not to have gratulated?
ought you not to have gratulated?
ought they not to have gratulated? 	ought I not to have been gratulating?
ought you not to have been gratulating?
ought she not to have been gratulating?
ought we not to have been gratulating?
ought you not to have been gratulating?
ought they not to have been gratulating?