could enfeeble
Regular verb: enfeeble - enfeebled- enfeebled

Affirmation 	
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I could enfeeble
you could enfeeble
he could enfeeble
we could enfeeble
you could enfeeble
they could enfeeble 	I could be enfeebling
you could be enfeebling
he could be enfeebling
we could be enfeebling
you could be enfeebling
they could be enfeebling	I could have enfeebled
you could have enfeebled
he could have enfeebled
we could have enfeebled
you could have enfeebled
they could have enfeebled	I could have been enfeebling
you could have been enfeebling
he could have been enfeebling
we could have been enfeebling
you could have been enfeebling
they could have been enfeebling	

Negation 	
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I could not enfeeble
you could not enfeeble
he could not enfeeble
we could not enfeeble
you could not enfeeble
they could not enfeeble 	I could not be enfeebling
you could not be enfeebling
he could not be enfeebling
we could not be enfeebling
you could not be enfeebling
they could not be enfeebling	I could not have enfeebled
you could not have enfeebled
he could not have enfeebled
we could not have enfeebled
you could not have enfeebled
they could not have enfeebled	I could not have been enfeebling
you could not have been enfeebling
he could not have been enfeebling
we could not have been enfeebling
you could not have been enfeebling
they could not have been enfeebling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I enfeeble?
could you enfeeble?
could he enfeeble?
could we enfeeble?
could you enfeeble?
could they enfeeble? 	could I be enfeebling?
could you be enfeebling?
could he be enfeebling?
could we be enfeebling?
could you be enfeebling?
could they be enfeebling? 	could I have enfeebled?
could you have enfeebled?
could he have enfeebled?
could we have enfeebled?
could you have enfeebled?
could they have enfeebled? 	could I have been enfeebling?
could you have been enfeebling?
could he have been enfeebling?
could we have been enfeebling?
could you have been enfeebling?
could they have been enfeebling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not enfeeble?
could you not enfeeble?
could he not enfeeble?
could we not enfeeble?
could you not enfeeble?
could they not enfeeble? 	could I not be enfeebling?
could you not be enfeebling?
could he not be enfeebling?
could we not be enfeebling?
could you not be enfeebling?
could they not be enfeebling? 	could I not have enfeebled?
could you not have enfeebled?
could he not have enfeebled?
could we not have enfeebled?
could you not have enfeebled?
could they not have enfeebled? 	could I not have been enfeebling?
could you not have been enfeebling?
could he not have been enfeebling?
could we not have been enfeebling?
could you not have been enfeebling?
could they not have been enfeebling?