English verb conjugation
SHALL OCCUR

Regular verb: occur - occurred - occurred

Affirmation

Simple form	V-ing form
I shall occur you shall occur he shall occur we shall occur you shall occur they shall occur	I shall be occurring you shall be occurring he shall be occurring we shall be occurring you shall be occurring they shall be occurring
Perfect	V-ing perfect
I shall have occurred you shall have occurred he shall have occurred we shall have occurred you shall have occurred they shall have occurred	I shall have been occurring you shall have been occurring he shall have been occurring we shall have been occurring you shall have been occurring they shall have been occurring

Negation

Simple form	V-ing form
I shall not occur you shall not occur he shall not occur we shall not occur you shall not occur they shall not occur	I shall not be occurring you shall not be occurring he shall not be occurring we shall not be occurring you shall not be occurring they shall not be occurring
Perfect	V-ing perfect
I shall not have occurred you shall not have occurred he shall not have occurred we shall not have occurred you shall not have occurred they shall not have occurred	I shall not have been occurring you shall not have been occurring he shall not have been occurring we shall not have been occurring you shall not have been occurring they shall not have been occurring

Interrogative form

Simple form	V-ing form
shall I occur? shall you occur? shall he occur? shall we occur? shall you occur? shall they occur?	shall I be occurring? shall you be occurring? shall he be occurring? shall we be occurring? shall you be occurring? shall they be occurring?
Perfect	V-ing perfect
shall I have occurred? shall you have occurred? shall he have occurred? shall we have occurred? shall you have occurred? shall they have occurred?	shall I have been occurring? shall you have been occurring? shall he have been occurring? shall we have been occurring? shall you have been occurring? shall they have been occurring?

Interro-negative form

Simple form	V-ing form
shall I not occur? shall you not occur? shall he not occur? shall we not occur? shall you not occur? shall they not occur?	shall I not be occurring? shall you not be occurring? shall he not be occurring? shall we not be occurring? shall you not be occurring? shall they not be occurring?
Perfect	V-ing perfect
shall I not have occurred? shall you not have occurred? shall he not have occurred? shall we not have occurred? shall you not have occurred? shall they not have occurred?	shall I not have been occurring? shall you not have been occurring? shall he not have been occurring? shall we not have been occurring? shall you not have been occurring? shall they not have been occurring?