shall obsess
Regular verb: obsess - obsessed- obsessed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall obsess
you shall obsess
she shall obsess
we shall obsess
you shall obsess
they shall obsess 	I shall be obsessing
you shall be obsessing
she shall be obsessing
we shall be obsessing
you shall be obsessing
they shall be obsessing	I shall have obsessed
you shall have obsessed
she shall have obsessed
we shall have obsessed
you shall have obsessed
they shall have obsessed	I shall have been obsessing
you shall have been obsessing
she shall have been obsessing
we shall have been obsessing
you shall have been obsessing
they shall have been obsessing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not obsess
you shall not obsess
she shall not obsess
we shall not obsess
you shall not obsess
they shall not obsess 	I shall not be obsessing
you shall not be obsessing
she shall not be obsessing
we shall not be obsessing
you shall not be obsessing
they shall not be obsessing	I shall not have obsessed
you shall not have obsessed
she shall not have obsessed
we shall not have obsessed
you shall not have obsessed
they shall not have obsessed	I shall not have been obsessing
you shall not have been obsessing
she shall not have been obsessing
we shall not have been obsessing
you shall not have been obsessing
they shall not have been obsessing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I obsess?
shall you obsess?
shall she obsess?
shall we obsess?
shall you obsess?
shall they obsess? 	shall I be obsessing?
shall you be obsessing?
shall she be obsessing?
shall we be obsessing?
shall you be obsessing?
shall they be obsessing? 	shall I have obsessed?
shall you have obsessed?
shall she have obsessed?
shall we have obsessed?
shall you have obsessed?
shall they have obsessed? 	shall I have been obsessing?
shall you have been obsessing?
shall she have been obsessing?
shall we have been obsessing?
shall you have been obsessing?
shall they have been obsessing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not obsess?
shall you not obsess?
shall she not obsess?
shall we not obsess?
shall you not obsess?
shall they not obsess? 	shall I not be obsessing?
shall you not be obsessing?
shall she not be obsessing?
shall we not be obsessing?
shall you not be obsessing?
shall they not be obsessing? 	shall I not have obsessed?
shall you not have obsessed?
shall she not have obsessed?
shall we not have obsessed?
shall you not have obsessed?
shall they not have obsessed? 	shall I not have been obsessing?
shall you not have been obsessing?
shall she not have been obsessing?
shall we not have been obsessing?
shall you not have been obsessing?
shall they not have been obsessing?