English verb conjugation
SHALL INTERVENE

Regular verb: intervene - intervened - intervened

Affirmation

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

Negation

Simple form	V-ing form
I shall not intervene you shall not intervene he shall not intervene we shall not intervene you shall not intervene they shall not intervene	I shall not be intervening you shall not be intervening he shall not be intervening we shall not be intervening you shall not be intervening they shall not be intervening
Perfect	V-ing perfect
I shall not have intervened you shall not have intervened he shall not have intervened we shall not have intervened you shall not have intervened they shall not have intervened	I shall not have been intervening you shall not have been intervening he shall not have been intervening we shall not have been intervening you shall not have been intervening they shall not have been intervening

Interrogative form

Simple form	V-ing form
shall I intervene? shall you intervene? shall he intervene? shall we intervene? shall you intervene? shall they intervene?	shall I be intervening? shall you be intervening? shall he 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 he 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 he 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
shall I not intervene? shall you not intervene? shall he not intervene? shall we not intervene? shall you not intervene? shall they not intervene?	shall I not be intervening? shall you not be intervening? shall he not be intervening? shall we not be intervening? shall you not be intervening? shall they not be intervening?
Perfect	V-ing perfect
shall I not have intervened? shall you not have intervened? shall he not have intervened? shall we not have intervened? shall you not have intervened? shall they not have intervened?	shall I not have been intervening? shall you not have been intervening? shall he not have been intervening? shall we not have been intervening? shall you not have been intervening? shall they not have been intervening?