can thirst
Regular verb: thirst - thirsted- thirsted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can thirst
you can thirst
she can thirst
we can thirst
you can thirst
they can thirst 	I can be thirsting
you can be thirsting
she can be thirsting
we can be thirsting
you can be thirsting
they can be thirsting	I can have thirsted
you can have thirsted
she can have thirsted
we can have thirsted
you can have thirsted
they can have thirsted	I can have been thirsting
you can have been thirsting
she can have been thirsting
we can have been thirsting
you can have been thirsting
they can have been thirsting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot thirst
you cannot thirst
she cannot thirst
we cannot thirst
you cannot thirst
they cannot thirst 	I cannot be thirsting
you cannot be thirsting
she cannot be thirsting
we cannot be thirsting
you cannot be thirsting
they cannot be thirsting	I cannot have thirsted
you cannot have thirsted
she cannot have thirsted
we cannot have thirsted
you cannot have thirsted
they cannot have thirsted	I cannot have been thirsting
you cannot have been thirsting
she cannot have been thirsting
we cannot have been thirsting
you cannot have been thirsting
they cannot have been thirsting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I thirst?
can you thirst?
can she thirst?
can we thirst?
can you thirst?
can they thirst? 	can I be thirsting?
can you be thirsting?
can she be thirsting?
can we be thirsting?
can you be thirsting?
can they be thirsting? 	can I have thirsted?
can you have thirsted?
can she have thirsted?
can we have thirsted?
can you have thirsted?
can they have thirsted? 	can I have been thirsting?
can you have been thirsting?
can she have been thirsting?
can we have been thirsting?
can you have been thirsting?
can they have been thirsting? 	

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