could discriminate
Regular verb: discriminate - discriminated- discriminated

Affirmation 	
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I could discriminate
you could discriminate
she could discriminate
we could discriminate
you could discriminate
they could discriminate 	I could be discriminating
you could be discriminating
she could be discriminating
we could be discriminating
you could be discriminating
they could be discriminating	I could have discriminated
you could have discriminated
she could have discriminated
we could have discriminated
you could have discriminated
they could have discriminated	I could have been discriminating
you could have been discriminating
she could have been discriminating
we could have been discriminating
you could have been discriminating
they could have been discriminating	

Negation 	
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I couldn't discriminate
you couldn't discriminate
she couldn't discriminate
we couldn't discriminate
you couldn't discriminate
they couldn't discriminate 	I couldn't be discriminating
you couldn't be discriminating
she couldn't be discriminating
we couldn't be discriminating
you couldn't be discriminating
they couldn't be discriminating	I couldn't have discriminated
you couldn't have discriminated
she couldn't have discriminated
we couldn't have discriminated
you couldn't have discriminated
they couldn't have discriminated	I couldn't have been discriminating
you couldn't have been discriminating
she couldn't have been discriminating
we couldn't have been discriminating
you couldn't have been discriminating
they couldn't have been discriminating	

Interrogative form 	
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could I discriminate?
could you discriminate?
could she discriminate?
could we discriminate?
could you discriminate?
could they discriminate? 	could I be discriminating?
could you be discriminating?
could she be discriminating?
could we be discriminating?
could you be discriminating?
could they be discriminating? 	could I have discriminated?
could you have discriminated?
could she have discriminated?
could we have discriminated?
could you have discriminated?
could they have discriminated? 	could I have been discriminating?
could you have been discriminating?
could she have been discriminating?
could we have been discriminating?
could you have been discriminating?
could they have been discriminating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I discriminate?
couldn't you discriminate?
couldn't she discriminate?
couldn't we discriminate?
couldn't you discriminate?
couldn't they discriminate? 	couldn't I be discriminating?
couldn't you be discriminating?
couldn't she be discriminating?
couldn't we be discriminating?
couldn't you be discriminating?
couldn't they be discriminating? 	couldn't I have discriminated?
couldn't you have discriminated?
couldn't she have discriminated?
couldn't we have discriminated?
couldn't you have discriminated?
couldn't they have discriminated? 	couldn't I have been discriminating?
couldn't you have been discriminating?
couldn't she have been discriminating?
couldn't we have been discriminating?
couldn't you have been discriminating?
couldn't they have been discriminating?