English verb conjugation
SHALL WARN

Regular verb: warn - warned - warned

Affirmation

Simple form	V-ing form
I'll warn you'll warn he'll warn we'll warn you'll warn they'll warn	I'll be warning you'll be warning he'll be warning we'll be warning you'll be warning they'll be warning
Perfect	V-ing perfect
I'll have warned you'll have warned he'll have warned we'll have warned you'll have warned they'll have warned	I'll have been warning you'll have been warning he'll have been warning we'll have been warning you'll have been warning they'll have been warning

Negation

Simple form	V-ing form
I shan't warn you shan't warn he shan't warn we shan't warn you shan't warn they shan't warn	I shan't be warning you shan't be warning he shan't be warning we shan't be warning you shan't be warning they shan't be warning
Perfect	V-ing perfect
I shan't have warned you shan't have warned he shan't have warned we shan't have warned you shan't have warned they shan't have warned	I shan't have been warning you shan't have been warning he shan't have been warning we shan't have been warning you shan't have been warning they shan't have been warning

Interrogative form

Simple form	V-ing form
shall I warn? shall you warn? shall he warn? shall we warn? shall you warn? shall they warn?	shall I be warning? shall you be warning? shall he be warning? shall we be warning? shall you be warning? shall they be warning?
Perfect	V-ing perfect
shall I have warned? shall you have warned? shall he have warned? shall we have warned? shall you have warned? shall they have warned?	shall I have been warning? shall you have been warning? shall he have been warning? shall we have been warning? shall you have been warning? shall they have been warning?

Interro-negative form

Simple form	V-ing form
shan't I warn? shan't you warn? shan't he warn? shan't we warn? shan't you warn? shan't they warn?	shan't I be warning? shan't you be warning? shan't he be warning? shan't we be warning? shan't you be warning? shan't they be warning?
Perfect	V-ing perfect
shan't I have warned? shan't you have warned? shan't he have warned? shan't we have warned? shan't you have warned? shan't they have warned?	shan't I have been warning? shan't you have been warning? shan't he have been warning? shan't we have been warning? shan't you have been warning? shan't they have been warning?