could pulse
Regular verb: pulse - pulsed- pulsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pulse
you could pulse
she could pulse
we could pulse
you could pulse
they could pulse 	I could be pulsing
you could be pulsing
she could be pulsing
we could be pulsing
you could be pulsing
they could be pulsing	I could have pulsed
you could have pulsed
she could have pulsed
we could have pulsed
you could have pulsed
they could have pulsed	I could have been pulsing
you could have been pulsing
she could have been pulsing
we could have been pulsing
you could have been pulsing
they could have been pulsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't pulse
you couldn't pulse
she couldn't pulse
we couldn't pulse
you couldn't pulse
they couldn't pulse 	I couldn't be pulsing
you couldn't be pulsing
she couldn't be pulsing
we couldn't be pulsing
you couldn't be pulsing
they couldn't be pulsing	I couldn't have pulsed
you couldn't have pulsed
she couldn't have pulsed
we couldn't have pulsed
you couldn't have pulsed
they couldn't have pulsed	I couldn't have been pulsing
you couldn't have been pulsing
she couldn't have been pulsing
we couldn't have been pulsing
you couldn't have been pulsing
they couldn't have been pulsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pulse?
could you pulse?
could she pulse?
could we pulse?
could you pulse?
could they pulse? 	could I be pulsing?
could you be pulsing?
could she be pulsing?
could we be pulsing?
could you be pulsing?
could they be pulsing? 	could I have pulsed?
could you have pulsed?
could she have pulsed?
could we have pulsed?
could you have pulsed?
could they have pulsed? 	could I have been pulsing?
could you have been pulsing?
could she have been pulsing?
could we have been pulsing?
could you have been pulsing?
could they have been pulsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I pulse?
couldn't you pulse?
couldn't she pulse?
couldn't we pulse?
couldn't you pulse?
couldn't they pulse? 	couldn't I be pulsing?
couldn't you be pulsing?
couldn't she be pulsing?
couldn't we be pulsing?
couldn't you be pulsing?
couldn't they be pulsing? 	couldn't I have pulsed?
couldn't you have pulsed?
couldn't she have pulsed?
couldn't we have pulsed?
couldn't you have pulsed?
couldn't they have pulsed? 	couldn't I have been pulsing?
couldn't you have been pulsing?
couldn't she have been pulsing?
couldn't we have been pulsing?
couldn't you have been pulsing?
couldn't they have been pulsing?