English verb conjugation
OUGHT TO THANK

Regular verb: thank - thanked - thanked

Affirmation

Simple form	V-ing form
I ought to thank you ought to thank she ought to thank we ought to thank you ought to thank they ought to thank	I ought to be thanking you ought to be thanking she ought to be thanking we ought to be thanking you ought to be thanking they ought to be thanking
Perfect	V-ing perfect
I ought to have thanked you ought to have thanked she ought to have thanked we ought to have thanked you ought to have thanked they ought to have thanked	I ought to have been thanking you ought to have been thanking she ought to have been thanking we ought to have been thanking you ought to have been thanking they ought to have been thanking

Negation

Simple form	V-ing form
I oughtn't to thank you oughtn't to thank she oughtn't to thank we oughtn't to thank you oughtn't to thank they oughtn't to thank	I oughtn't to be thanking you oughtn't to be thanking she oughtn't to be thanking we oughtn't to be thanking you oughtn't to be thanking they oughtn't to be thanking
Perfect	V-ing perfect
I oughtn't to have thanked you oughtn't to have thanked she oughtn't to have thanked we oughtn't to have thanked you oughtn't to have thanked they oughtn't to have thanked	I oughtn't to have been thanking you oughtn't to have been thanking she oughtn't to have been thanking we oughtn't to have been thanking you oughtn't to have been thanking they oughtn't to have been thanking

Interrogative form

Simple form	V-ing form
ought to I thank? ought to you thank? ought to she thank? ought to we thank? ought to you thank? ought to they thank?	ought to I be thanking? ought to you be thanking? ought to she be thanking? ought to we be thanking? ought to you be thanking? ought to they be thanking?
Perfect	V-ing perfect
ought to I have thanked? ought to you have thanked? ought to she have thanked? ought to we have thanked? ought to you have thanked? ought to they have thanked?	ought to I have been thanking? ought to you have been thanking? ought to she have been thanking? ought to we have been thanking? ought to you have been thanking? ought to they have been thanking?

Interro-negative form

Simple form	V-ing form
oughtn't I to thank? oughtn't you to thank? oughtn't she to thank? oughtn't we to thank? oughtn't you to thank? oughtn't they to thank?	oughtn't I to be thanking? oughtn't you to be thanking? oughtn't she to be thanking? oughtn't we to be thanking? oughtn't you to be thanking? oughtn't they to be thanking?
Perfect	V-ing perfect
oughtn't I to have thanked? oughtn't you to have thanked? oughtn't she to have thanked? oughtn't we to have thanked? oughtn't you to have thanked? oughtn't they to have thanked?	oughtn't I to have been thanking? oughtn't you to have been thanking? oughtn't she to have been thanking? oughtn't we to have been thanking? oughtn't you to have been thanking? oughtn't they to have been thanking?