shall occur
Verbo regular: occur - occurred- occurred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall occur
you shall occur
she shall occur
we shall occur
you shall occur
they shall occur 	I shall be occurring
you shall be occurring
she shall be occurring
we shall be occurring
you shall be occurring
they shall be occurring	I shall have occurred
you shall have occurred
she 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
she shall have been occurring
we shall have been occurring
you shall have been occurring
they shall have been occurring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall not occur
you shall not occur
she 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
she shall not be occurring
we shall not be occurring
you shall not be occurring
they shall not be occurring	I shall not have occurred
you shall not have occurred
she 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
she shall not have been occurring
we shall not have been occurring
you shall not have been occurring
they shall not have been occurring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I occur?
shall you occur?
shall she occur?
shall we occur?
shall you occur?
shall they occur? 	shall I be occurring?
shall you be occurring?
shall she be occurring?
shall we be occurring?
shall you be occurring?
shall they be occurring? 	shall I have occurred?
shall you have occurred?
shall she 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 she have been occurring?
shall we have been occurring?
shall you have been occurring?
shall they have been occurring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I not occur?
shall you not occur?
shall she 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 she not be occurring?
shall we not be occurring?
shall you not be occurring?
shall they not be occurring? 	shall I not have occurred?
shall you not have occurred?
shall she 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 she not have been occurring?
shall we not have been occurring?
shall you not have been occurring?
shall they not have been occurring?