could mistreat
Regular verb: mistreat - mistreated- mistreated

Affirmation 	
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I could mistreat
you could mistreat
he could mistreat
we could mistreat
you could mistreat
they could mistreat 	I could be mistreating
you could be mistreating
he could be mistreating
we could be mistreating
you could be mistreating
they could be mistreating	I could have mistreated
you could have mistreated
he could have mistreated
we could have mistreated
you could have mistreated
they could have mistreated	I could have been mistreating
you could have been mistreating
he could have been mistreating
we could have been mistreating
you could have been mistreating
they could have been mistreating	

Negation 	
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I couldn't mistreat
you couldn't mistreat
he couldn't mistreat
we couldn't mistreat
you couldn't mistreat
they couldn't mistreat 	I couldn't be mistreating
you couldn't be mistreating
he couldn't be mistreating
we couldn't be mistreating
you couldn't be mistreating
they couldn't be mistreating	I couldn't have mistreated
you couldn't have mistreated
he couldn't have mistreated
we couldn't have mistreated
you couldn't have mistreated
they couldn't have mistreated	I couldn't have been mistreating
you couldn't have been mistreating
he couldn't have been mistreating
we couldn't have been mistreating
you couldn't have been mistreating
they couldn't have been mistreating	

Interrogative form 	
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could I mistreat?
could you mistreat?
could he mistreat?
could we mistreat?
could you mistreat?
could they mistreat? 	could I be mistreating?
could you be mistreating?
could he be mistreating?
could we be mistreating?
could you be mistreating?
could they be mistreating? 	could I have mistreated?
could you have mistreated?
could he have mistreated?
could we have mistreated?
could you have mistreated?
could they have mistreated? 	could I have been mistreating?
could you have been mistreating?
could he have been mistreating?
could we have been mistreating?
could you have been mistreating?
could they have been mistreating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I mistreat?
couldn't you mistreat?
couldn't he mistreat?
couldn't we mistreat?
couldn't you mistreat?
couldn't they mistreat? 	couldn't I be mistreating?
couldn't you be mistreating?
couldn't he be mistreating?
couldn't we be mistreating?
couldn't you be mistreating?
couldn't they be mistreating? 	couldn't I have mistreated?
couldn't you have mistreated?
couldn't he have mistreated?
couldn't we have mistreated?
couldn't you have mistreated?
couldn't they have mistreated? 	couldn't I have been mistreating?
couldn't you have been mistreating?
couldn't he have been mistreating?
couldn't we have been mistreating?
couldn't you have been mistreating?
couldn't they have been mistreating?