could titrate
Regular verb: titrate - titrated- titrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could titrate
you could titrate
he could titrate
we could titrate
you could titrate
they could titrate 	I could be titrating
you could be titrating
he could be titrating
we could be titrating
you could be titrating
they could be titrating	I could have titrated
you could have titrated
he could have titrated
we could have titrated
you could have titrated
they could have titrated	I could have been titrating
you could have been titrating
he could have been titrating
we could have been titrating
you could have been titrating
they could have been titrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not titrate
you could not titrate
he could not titrate
we could not titrate
you could not titrate
they could not titrate 	I could not be titrating
you could not be titrating
he could not be titrating
we could not be titrating
you could not be titrating
they could not be titrating	I could not have titrated
you could not have titrated
he could not have titrated
we could not have titrated
you could not have titrated
they could not have titrated	I could not have been titrating
you could not have been titrating
he could not have been titrating
we could not have been titrating
you could not have been titrating
they could not have been titrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I titrate?
could you titrate?
could he titrate?
could we titrate?
could you titrate?
could they titrate? 	could I be titrating?
could you be titrating?
could he be titrating?
could we be titrating?
could you be titrating?
could they be titrating? 	could I have titrated?
could you have titrated?
could he have titrated?
could we have titrated?
could you have titrated?
could they have titrated? 	could I have been titrating?
could you have been titrating?
could he have been titrating?
could we have been titrating?
could you have been titrating?
could they have been titrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not titrate?
could you not titrate?
could he not titrate?
could we not titrate?
could you not titrate?
could they not titrate? 	could I not be titrating?
could you not be titrating?
could he not be titrating?
could we not be titrating?
could you not be titrating?
could they not be titrating? 	could I not have titrated?
could you not have titrated?
could he not have titrated?
could we not have titrated?
could you not have titrated?
could they not have titrated? 	could I not have been titrating?
could you not have been titrating?
could he not have been titrating?
could we not have been titrating?
could you not have been titrating?
could they not have been titrating?