could alleviate
Regular verb: alleviate - alleviated- alleviated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could alleviate
you could alleviate
she could alleviate
we could alleviate
you could alleviate
they could alleviate 	I could be alleviating
you could be alleviating
she could be alleviating
we could be alleviating
you could be alleviating
they could be alleviating	I could have alleviated
you could have alleviated
she could have alleviated
we could have alleviated
you could have alleviated
they could have alleviated	I could have been alleviating
you could have been alleviating
she could have been alleviating
we could have been alleviating
you could have been alleviating
they could have been alleviating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't alleviate
you couldn't alleviate
she couldn't alleviate
we couldn't alleviate
you couldn't alleviate
they couldn't alleviate 	I couldn't be alleviating
you couldn't be alleviating
she couldn't be alleviating
we couldn't be alleviating
you couldn't be alleviating
they couldn't be alleviating	I couldn't have alleviated
you couldn't have alleviated
she couldn't have alleviated
we couldn't have alleviated
you couldn't have alleviated
they couldn't have alleviated	I couldn't have been alleviating
you couldn't have been alleviating
she couldn't have been alleviating
we couldn't have been alleviating
you couldn't have been alleviating
they couldn't have been alleviating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I alleviate?
could you alleviate?
could she alleviate?
could we alleviate?
could you alleviate?
could they alleviate? 	could I be alleviating?
could you be alleviating?
could she be alleviating?
could we be alleviating?
could you be alleviating?
could they be alleviating? 	could I have alleviated?
could you have alleviated?
could she have alleviated?
could we have alleviated?
could you have alleviated?
could they have alleviated? 	could I have been alleviating?
could you have been alleviating?
could she have been alleviating?
could we have been alleviating?
could you have been alleviating?
could they have been alleviating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I alleviate?
couldn't you alleviate?
couldn't she alleviate?
couldn't we alleviate?
couldn't you alleviate?
couldn't they alleviate? 	couldn't I be alleviating?
couldn't you be alleviating?
couldn't she be alleviating?
couldn't we be alleviating?
couldn't you be alleviating?
couldn't they be alleviating? 	couldn't I have alleviated?
couldn't you have alleviated?
couldn't she have alleviated?
couldn't we have alleviated?
couldn't you have alleviated?
couldn't they have alleviated? 	couldn't I have been alleviating?
couldn't you have been alleviating?
couldn't she have been alleviating?
couldn't we have been alleviating?
couldn't you have been alleviating?
couldn't they have been alleviating?