ought to thirst
Regular verb: thirst - thirsted- thirsted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to thirst
you ought to thirst
he ought to thirst
we ought to thirst
you ought to thirst
they ought to thirst 	I ought to be thirsting
you ought to be thirsting
he ought to be thirsting
we ought to be thirsting
you ought to be thirsting
they ought to be thirsting	I ought to have thirsted
you ought to have thirsted
he ought to have thirsted
we ought to have thirsted
you ought to have thirsted
they ought to have thirsted	I ought to have been thirsting
you ought to have been thirsting
he ought to have been thirsting
we ought to have been thirsting
you ought to have been thirsting
they ought to have been thirsting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to thirst
you ought not to thirst
he ought not to thirst
we ought not to thirst
you ought not to thirst
they ought not to thirst 	I ought not to thirsting
you ought not to thirsting
he ought not to thirsting
we ought not to thirsting
you ought not to thirsting
they ought not to thirsting	I ought not to have thirsted
you ought not to have thirsted
he ought not to have thirsted
we ought not to have thirsted
you ought not to have thirsted
they ought not to have thirsted	I ought not to have been thirsting
you ought not to have been thirsting
he ought not to have been thirsting
we ought not to have been thirsting
you ought not to have been thirsting
they ought not to have been thirsting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I thirst?
ought to you thirst?
ought to he thirst?
ought to we thirst?
ought to you thirst?
ought to they thirst? 	ought to I be thirsting?
ought to you be thirsting?
ought to he be thirsting?
ought to we be thirsting?
ought to you be thirsting?
ought to they be thirsting? 	ought to I have thirsted?
ought to you have thirsted?
ought to he have thirsted?
ought to we have thirsted?
ought to you have thirsted?
ought to they have thirsted? 	ought to I have been thirsting?
ought to you have been thirsting?
ought to he have been thirsting?
ought to we have been thirsting?
ought to you have been thirsting?
ought to they have been thirsting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to thirst?
ought you not to thirst?
ought he not to thirst?
ought we not to thirst?
ought you not to thirst?
ought they not to thirst? 	ought I not to be thirsting?
ought you not to be thirsting?
ought he not to be thirsting?
ought we not to be thirsting?
ought you not to be thirsting?
ought they not to be thirsting? 	ought I not to have thirsted?
ought you not to have thirsted?
ought he not to have thirsted?
ought we not to have thirsted?
ought you not to have thirsted?
ought they not to have thirsted? 	ought I not to have been thirsting?
ought you not to have been thirsting?
ought he not to have been thirsting?
ought we not to have been thirsting?
ought you not to have been thirsting?
ought they not to have been thirsting?