English verb conjugation
SHALL INTERVENE

Regular verb: intervene - intervened - intervened

Affirmation

Simple form	V-ing form
I'll intervene you'll intervene she'll intervene we'll intervene you'll intervene they'll intervene	I'll be intervening you'll be intervening she'll be intervening we'll be intervening you'll be intervening they'll be intervening
Perfect	V-ing perfect
I'll have intervened you'll have intervened she'll have intervened we'll have intervened you'll have intervened they'll have intervened	I'll have been intervening you'll have been intervening she'll have been intervening we'll have been intervening you'll have been intervening they'll have been intervening

Negation

Simple form	V-ing form
I shan't intervene you shan't intervene she shan't intervene we shan't intervene you shan't intervene they shan't intervene	I shan't be intervening you shan't be intervening she shan't be intervening we shan't be intervening you shan't be intervening they shan't be intervening
Perfect	V-ing perfect
I shan't have intervened you shan't have intervened she shan't have intervened we shan't have intervened you shan't have intervened they shan't have intervened	I shan't have been intervening you shan't have been intervening she shan't have been intervening we shan't have been intervening you shan't have been intervening they shan't have been intervening

Interrogative form

Simple form	V-ing form
shall I intervene? shall you intervene? shall she intervene? shall we intervene? shall you intervene? shall they intervene?	shall I be intervening? shall you be intervening? shall she be intervening? shall we be intervening? shall you be intervening? shall they be intervening?
Perfect	V-ing perfect
shall I have intervened? shall you have intervened? shall she have intervened? shall we have intervened? shall you have intervened? shall they have intervened?	shall I have been intervening? shall you have been intervening? shall she have been intervening? shall we have been intervening? shall you have been intervening? shall they have been intervening?

Interro-negative form

Simple form	V-ing form
shan't I intervene? shan't you intervene? shan't she intervene? shan't we intervene? shan't you intervene? shan't they intervene?	shan't I be intervening? shan't you be intervening? shan't she be intervening? shan't we be intervening? shan't you be intervening? shan't they be intervening?
Perfect	V-ing perfect
shan't I have intervened? shan't you have intervened? shan't she have intervened? shan't we have intervened? shan't you have intervened? shan't they have intervened?	shan't I have been intervening? shan't you have been intervening? shan't she have been intervening? shan't we have been intervening? shan't you have been intervening? shan't they have been intervening?