English verb conjugation
SHALL MASK

Regular verb: mask - masked - masked

Affirmation

Simple form	V-ing form
I shall mask you shall mask he shall mask we shall mask you shall mask they shall mask	I shall be masking you shall be masking he shall be masking we shall be masking you shall be masking they shall be masking
Perfect	V-ing perfect
I shall have masked you shall have masked he shall have masked we shall have masked you shall have masked they shall have masked	I shall have been masking you shall have been masking he shall have been masking we shall have been masking you shall have been masking they shall have been masking

Negation

Simple form	V-ing form
I shall not mask you shall not mask he shall not mask we shall not mask you shall not mask they shall not mask	I shall not be masking you shall not be masking he shall not be masking we shall not be masking you shall not be masking they shall not be masking
Perfect	V-ing perfect
I shall not have masked you shall not have masked he shall not have masked we shall not have masked you shall not have masked they shall not have masked	I shall not have been masking you shall not have been masking he shall not have been masking we shall not have been masking you shall not have been masking they shall not have been masking

Interrogative form

Simple form	V-ing form
shall I mask? shall you mask? shall he mask? shall we mask? shall you mask? shall they mask?	shall I be masking? shall you be masking? shall he be masking? shall we be masking? shall you be masking? shall they be masking?
Perfect	V-ing perfect
shall I have masked? shall you have masked? shall he have masked? shall we have masked? shall you have masked? shall they have masked?	shall I have been masking? shall you have been masking? shall he have been masking? shall we have been masking? shall you have been masking? shall they have been masking?

Interro-negative form

Simple form	V-ing form
shall I not mask? shall you not mask? shall he not mask? shall we not mask? shall you not mask? shall they not mask?	shall I not be masking? shall you not be masking? shall he not be masking? shall we not be masking? shall you not be masking? shall they not be masking?
Perfect	V-ing perfect
shall I not have masked? shall you not have masked? shall he not have masked? shall we not have masked? shall you not have masked? shall they not have masked?	shall I not have been masking? shall you not have been masking? shall he not have been masking? shall we not have been masking? shall you not have been masking? shall they not have been masking?