English verb conjugation
SHOULD THANK

Regular verb: thank - thanked - thanked

Affirmation

Simple form	V-ing form
I should thank you should thank he should thank we should thank you should thank they should thank	I should be thanking you should be thanking he should be thanking we should be thanking you should be thanking they should be thanking
Perfect	V-ing perfect
I should have thanked you should have thanked he should have thanked we should have thanked you should have thanked they should have thanked	I should have been thanking you should have been thanking he should have been thanking we should have been thanking you should have been thanking they should have been thanking

Negation

Simple form	V-ing form
I should not thank you should not thank he should not thank we should not thank you should not thank they should not thank	I should not be thanking you should not be thanking he should not be thanking we should not be thanking you should not be thanking they should not be thanking
Perfect	V-ing perfect
I should not have thanked you should not have thanked he should not have thanked we should not have thanked you should not have thanked they should not have thanked	I should not have been thanking you should not have been thanking he should not have been thanking we should not have been thanking you should not have been thanking they should not have been thanking

Interrogative form

Simple form	V-ing form
should I thank? should you thank? should he thank? should we thank? should you thank? should they thank?	should I be thanking? should you be thanking? should he be thanking? should we be thanking? should you be thanking? should they be thanking?
Perfect	V-ing perfect
should I have thanked? should you have thanked? should he have thanked? should we have thanked? should you have thanked? should they have thanked?	should I have been thanking? should you have been thanking? should he have been thanking? should we have been thanking? should you have been thanking? should they have been thanking?

Interro-negative form

Simple form	V-ing form
should I not thank? should you not thank? should he not thank? should we not thank? should you not thank? should they not thank?	should I not be thanking? should you not be thanking? should he not be thanking? should we not be thanking? should you not be thanking? should they not be thanking?
Perfect	V-ing perfect
should I not have thanked? should you not have thanked? should he not have thanked? should we not have thanked? should you not have thanked? should they not have thanked?	should I not have been thanking? should you not have been thanking? should he not have been thanking? should we not have been thanking? should you not have been thanking? should they not have been thanking?