could abuse
Regular verb: abuse - abused- abused

Affirmation 	
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I could abuse
you could abuse
she could abuse
we could abuse
you could abuse
they could abuse 	I could be abusing
you could be abusing
she could be abusing
we could be abusing
you could be abusing
they could be abusing	I could have abused
you could have abused
she could have abused
we could have abused
you could have abused
they could have abused	I could have been abusing
you could have been abusing
she could have been abusing
we could have been abusing
you could have been abusing
they could have been abusing	

Negation 	
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I could not abuse
you could not abuse
she could not abuse
we could not abuse
you could not abuse
they could not abuse 	I could not be abusing
you could not be abusing
she could not be abusing
we could not be abusing
you could not be abusing
they could not be abusing	I could not have abused
you could not have abused
she could not have abused
we could not have abused
you could not have abused
they could not have abused	I could not have been abusing
you could not have been abusing
she could not have been abusing
we could not have been abusing
you could not have been abusing
they could not have been abusing	

Interrogative form 	
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could I abuse?
could you abuse?
could she abuse?
could we abuse?
could you abuse?
could they abuse? 	could I be abusing?
could you be abusing?
could she be abusing?
could we be abusing?
could you be abusing?
could they be abusing? 	could I have abused?
could you have abused?
could she have abused?
could we have abused?
could you have abused?
could they have abused? 	could I have been abusing?
could you have been abusing?
could she have been abusing?
could we have been abusing?
could you have been abusing?
could they have been abusing? 	

Interro-negative form 	
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could I not abuse?
could you not abuse?
could she not abuse?
could we not abuse?
could you not abuse?
could they not abuse? 	could I not be abusing?
could you not be abusing?
could she not be abusing?
could we not be abusing?
could you not be abusing?
could they not be abusing? 	could I not have abused?
could you not have abused?
could she not have abused?
could we not have abused?
could you not have abused?
could they not have abused? 	could I not have been abusing?
could you not have been abusing?
could she not have been abusing?
could we not have been abusing?
could you not have been abusing?
could they not have been abusing?