could preselect
Regular verb: preselect - preselected- preselected

Affirmation 	
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I could preselect
you could preselect
she could preselect
we could preselect
you could preselect
they could preselect 	I could be preselecting
you could be preselecting
she could be preselecting
we could be preselecting
you could be preselecting
they could be preselecting	I could have preselected
you could have preselected
she could have preselected
we could have preselected
you could have preselected
they could have preselected	I could have been preselecting
you could have been preselecting
she could have been preselecting
we could have been preselecting
you could have been preselecting
they could have been preselecting	

Negation 	
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I couldn't preselect
you couldn't preselect
she couldn't preselect
we couldn't preselect
you couldn't preselect
they couldn't preselect 	I couldn't be preselecting
you couldn't be preselecting
she couldn't be preselecting
we couldn't be preselecting
you couldn't be preselecting
they couldn't be preselecting	I couldn't have preselected
you couldn't have preselected
she couldn't have preselected
we couldn't have preselected
you couldn't have preselected
they couldn't have preselected	I couldn't have been preselecting
you couldn't have been preselecting
she couldn't have been preselecting
we couldn't have been preselecting
you couldn't have been preselecting
they couldn't have been preselecting	

Interrogative form 	
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could I preselect?
could you preselect?
could she preselect?
could we preselect?
could you preselect?
could they preselect? 	could I be preselecting?
could you be preselecting?
could she be preselecting?
could we be preselecting?
could you be preselecting?
could they be preselecting? 	could I have preselected?
could you have preselected?
could she have preselected?
could we have preselected?
could you have preselected?
could they have preselected? 	could I have been preselecting?
could you have been preselecting?
could she have been preselecting?
could we have been preselecting?
could you have been preselecting?
could they have been preselecting? 	

Interro-negative form 	
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couldn't I preselect?
couldn't you preselect?
couldn't she preselect?
couldn't we preselect?
couldn't you preselect?
couldn't they preselect? 	couldn't I be preselecting?
couldn't you be preselecting?
couldn't she be preselecting?
couldn't we be preselecting?
couldn't you be preselecting?
couldn't they be preselecting? 	couldn't I have preselected?
couldn't you have preselected?
couldn't she have preselected?
couldn't we have preselected?
couldn't you have preselected?
couldn't they have preselected? 	couldn't I have been preselecting?
couldn't you have been preselecting?
couldn't she have been preselecting?
couldn't we have been preselecting?
couldn't you have been preselecting?
couldn't they have been preselecting?