could enfeeble
Regular verb: enfeeble - enfeebled- enfeebled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't enfeeble
you couldn't enfeeble
he couldn't enfeeble
we couldn't enfeeble
you couldn't enfeeble
they couldn't enfeeble 	I couldn't be enfeebling
you couldn't be enfeebling
he couldn't be enfeebling
we couldn't be enfeebling
you couldn't be enfeebling
they couldn't be enfeebling	I couldn't have enfeebled
you couldn't have enfeebled
he couldn't have enfeebled
we couldn't have enfeebled
you couldn't have enfeebled
they couldn't have enfeebled	I couldn't have been enfeebling
you couldn't have been enfeebling
he couldn't have been enfeebling
we couldn't have been enfeebling
you couldn't have been enfeebling
they couldn't 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 	
couldn't I enfeeble?
couldn't you enfeeble?
couldn't he enfeeble?
couldn't we enfeeble?
couldn't you enfeeble?
couldn't they enfeeble? 	couldn't I be enfeebling?
couldn't you be enfeebling?
couldn't he be enfeebling?
couldn't we be enfeebling?
couldn't you be enfeebling?
couldn't they be enfeebling? 	couldn't I have enfeebled?
couldn't you have enfeebled?
couldn't he have enfeebled?
couldn't we have enfeebled?
couldn't you have enfeebled?
couldn't they have enfeebled? 	couldn't I have been enfeebling?
couldn't you have been enfeebling?
couldn't he have been enfeebling?
couldn't we have been enfeebling?
couldn't you have been enfeebling?
couldn't they have been enfeebling?