could mistreat
Regular verb: mistreat - mistreated- mistreated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could mistreat
you could mistreat
she could mistreat
we could mistreat
you could mistreat
they could mistreat 	I could be mistreating
you could be mistreating
she could be mistreating
we could be mistreating
you could be mistreating
they could be mistreating	I could have mistreated
you could have mistreated
she 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
she 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
she 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
she 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
she 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
she 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 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I mistreat?
could you mistreat?
could she mistreat?
could we mistreat?
could you mistreat?
could they mistreat? 	could I be mistreating?
could you be mistreating?
could she be mistreating?
could we be mistreating?
could you be mistreating?
could they be mistreating? 	could I have mistreated?
could you have mistreated?
could she 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 she 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 she 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 she 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 she 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 she have been mistreating?
couldn't we have been mistreating?
couldn't you have been mistreating?
couldn't they have been mistreating?