English verb conjugation
SHALL COUNTERVAIL

Regular verb: countervail - countervailed - countervailed

Affirmation

Simple form	V-ing form
I shall countervail you shall countervail he shall countervail we shall countervail you shall countervail they shall countervail	I shall be countervailing you shall be countervailing he shall be countervailing we shall be countervailing you shall be countervailing they shall be countervailing
Perfect	V-ing perfect
I shall have countervailed you shall have countervailed he shall have countervailed we shall have countervailed you shall have countervailed they shall have countervailed	I shall have been countervailing you shall have been countervailing he shall have been countervailing we shall have been countervailing you shall have been countervailing they shall have been countervailing

Negation

Simple form	V-ing form
I shall not countervail you shall not countervail he shall not countervail we shall not countervail you shall not countervail they shall not countervail	I shall not be countervailing you shall not be countervailing he shall not be countervailing we shall not be countervailing you shall not be countervailing they shall not be countervailing
Perfect	V-ing perfect
I shall not have countervailed you shall not have countervailed he shall not have countervailed we shall not have countervailed you shall not have countervailed they shall not have countervailed	I shall not have been countervailing you shall not have been countervailing he shall not have been countervailing we shall not have been countervailing you shall not have been countervailing they shall not have been countervailing

Interrogative form

Simple form	V-ing form
shall I countervail? shall you countervail? shall he countervail? shall we countervail? shall you countervail? shall they countervail?	shall I be countervailing? shall you be countervailing? shall he be countervailing? shall we be countervailing? shall you be countervailing? shall they be countervailing?
Perfect	V-ing perfect
shall I have countervailed? shall you have countervailed? shall he have countervailed? shall we have countervailed? shall you have countervailed? shall they have countervailed?	shall I have been countervailing? shall you have been countervailing? shall he have been countervailing? shall we have been countervailing? shall you have been countervailing? shall they have been countervailing?

Interro-negative form

Simple form	V-ing form
shall I not countervail? shall you not countervail? shall he not countervail? shall we not countervail? shall you not countervail? shall they not countervail?	shall I not be countervailing? shall you not be countervailing? shall he not be countervailing? shall we not be countervailing? shall you not be countervailing? shall they not be countervailing?
Perfect	V-ing perfect
shall I not have countervailed? shall you not have countervailed? shall he not have countervailed? shall we not have countervailed? shall you not have countervailed? shall they not have countervailed?	shall I not have been countervailing? shall you not have been countervailing? shall he not have been countervailing? shall we not have been countervailing? shall you not have been countervailing? shall they not have been countervailing?