English verb conjugation
SHALL DRUB

Regular verb: drub - drubbed - drubbed

Affirmation

Simple form	V-ing form
I shall drub you shall drub he shall drub we shall drub you shall drub they shall drub	I shall be drubbing you shall be drubbing he shall be drubbing we shall be drubbing you shall be drubbing they shall be drubbing
Perfect	V-ing perfect
I shall have drubbed you shall have drubbed he shall have drubbed we shall have drubbed you shall have drubbed they shall have drubbed	I shall have been drubbing you shall have been drubbing he shall have been drubbing we shall have been drubbing you shall have been drubbing they shall have been drubbing

Negation

Simple form	V-ing form
I shall not drub you shall not drub he shall not drub we shall not drub you shall not drub they shall not drub	I shall not be drubbing you shall not be drubbing he shall not be drubbing we shall not be drubbing you shall not be drubbing they shall not be drubbing
Perfect	V-ing perfect
I shall not have drubbed you shall not have drubbed he shall not have drubbed we shall not have drubbed you shall not have drubbed they shall not have drubbed	I shall not have been drubbing you shall not have been drubbing he shall not have been drubbing we shall not have been drubbing you shall not have been drubbing they shall not have been drubbing

Interrogative form

Simple form	V-ing form
shall I drub? shall you drub? shall he drub? shall we drub? shall you drub? shall they drub?	shall I be drubbing? shall you be drubbing? shall he be drubbing? shall we be drubbing? shall you be drubbing? shall they be drubbing?
Perfect	V-ing perfect
shall I have drubbed? shall you have drubbed? shall he have drubbed? shall we have drubbed? shall you have drubbed? shall they have drubbed?	shall I have been drubbing? shall you have been drubbing? shall he have been drubbing? shall we have been drubbing? shall you have been drubbing? shall they have been drubbing?

Interro-negative form

Simple form	V-ing form
shall I not drub? shall you not drub? shall he not drub? shall we not drub? shall you not drub? shall they not drub?	shall I not be drubbing? shall you not be drubbing? shall he not be drubbing? shall we not be drubbing? shall you not be drubbing? shall they not be drubbing?
Perfect	V-ing perfect
shall I not have drubbed? shall you not have drubbed? shall he not have drubbed? shall we not have drubbed? shall you not have drubbed? shall they not have drubbed?	shall I not have been drubbing? shall you not have been drubbing? shall he not have been drubbing? shall we not have been drubbing? shall you not have been drubbing? shall they not have been drubbing?