could valuate
Regular verb: valuate - valuated- valuated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could valuate
you could valuate
she could valuate
we could valuate
you could valuate
they could valuate 	I could be valuating
you could be valuating
she could be valuating
we could be valuating
you could be valuating
they could be valuating	I could have valuated
you could have valuated
she could have valuated
we could have valuated
you could have valuated
they could have valuated	I could have been valuating
you could have been valuating
she could have been valuating
we could have been valuating
you could have been valuating
they could have been valuating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't valuate
you couldn't valuate
she couldn't valuate
we couldn't valuate
you couldn't valuate
they couldn't valuate 	I couldn't be valuating
you couldn't be valuating
she couldn't be valuating
we couldn't be valuating
you couldn't be valuating
they couldn't be valuating	I couldn't have valuated
you couldn't have valuated
she couldn't have valuated
we couldn't have valuated
you couldn't have valuated
they couldn't have valuated	I couldn't have been valuating
you couldn't have been valuating
she couldn't have been valuating
we couldn't have been valuating
you couldn't have been valuating
they couldn't have been valuating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I valuate?
could you valuate?
could she valuate?
could we valuate?
could you valuate?
could they valuate? 	could I be valuating?
could you be valuating?
could she be valuating?
could we be valuating?
could you be valuating?
could they be valuating? 	could I have valuated?
could you have valuated?
could she have valuated?
could we have valuated?
could you have valuated?
could they have valuated? 	could I have been valuating?
could you have been valuating?
could she have been valuating?
could we have been valuating?
could you have been valuating?
could they have been valuating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I valuate?
couldn't you valuate?
couldn't she valuate?
couldn't we valuate?
couldn't you valuate?
couldn't they valuate? 	couldn't I be valuating?
couldn't you be valuating?
couldn't she be valuating?
couldn't we be valuating?
couldn't you be valuating?
couldn't they be valuating? 	couldn't I have valuated?
couldn't you have valuated?
couldn't she have valuated?
couldn't we have valuated?
couldn't you have valuated?
couldn't they have valuated? 	couldn't I have been valuating?
couldn't you have been valuating?
couldn't she have been valuating?
couldn't we have been valuating?
couldn't you have been valuating?
couldn't they have been valuating?