could elevate
Regular verb: elevate - elevated- elevated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could elevate
you could elevate
she could elevate
we could elevate
you could elevate
they could elevate 	I could be elevating
you could be elevating
she could be elevating
we could be elevating
you could be elevating
they could be elevating	I could have elevated
you could have elevated
she could have elevated
we could have elevated
you could have elevated
they could have elevated	I could have been elevating
you could have been elevating
she could have been elevating
we could have been elevating
you could have been elevating
they could have been elevating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't elevate
you couldn't elevate
she couldn't elevate
we couldn't elevate
you couldn't elevate
they couldn't elevate 	I couldn't be elevating
you couldn't be elevating
she couldn't be elevating
we couldn't be elevating
you couldn't be elevating
they couldn't be elevating	I couldn't have elevated
you couldn't have elevated
she couldn't have elevated
we couldn't have elevated
you couldn't have elevated
they couldn't have elevated	I couldn't have been elevating
you couldn't have been elevating
she couldn't have been elevating
we couldn't have been elevating
you couldn't have been elevating
they couldn't have been elevating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I elevate?
could you elevate?
could she elevate?
could we elevate?
could you elevate?
could they elevate? 	could I be elevating?
could you be elevating?
could she be elevating?
could we be elevating?
could you be elevating?
could they be elevating? 	could I have elevated?
could you have elevated?
could she have elevated?
could we have elevated?
could you have elevated?
could they have elevated? 	could I have been elevating?
could you have been elevating?
could she have been elevating?
could we have been elevating?
could you have been elevating?
could they have been elevating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I elevate?
couldn't you elevate?
couldn't she elevate?
couldn't we elevate?
couldn't you elevate?
couldn't they elevate? 	couldn't I be elevating?
couldn't you be elevating?
couldn't she be elevating?
couldn't we be elevating?
couldn't you be elevating?
couldn't they be elevating? 	couldn't I have elevated?
couldn't you have elevated?
couldn't she have elevated?
couldn't we have elevated?
couldn't you have elevated?
couldn't they have elevated? 	couldn't I have been elevating?
couldn't you have been elevating?
couldn't she have been elevating?
couldn't we have been elevating?
couldn't you have been elevating?
couldn't they have been elevating?