must enfeeble
Regular verb: enfeeble - enfeebled- enfeebled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must enfeeble
you must enfeeble
he must enfeeble
we must enfeeble
you must enfeeble
they must enfeeble 	I must be enfeebling
you must be enfeebling
he must be enfeebling
we must be enfeebling
you must be enfeebling
they must be enfeebling	I must have enfeebled
you must have enfeebled
he must have enfeebled
we must have enfeebled
you must have enfeebled
they must have enfeebled	I must have been enfeebling
you must have been enfeebling
he must have been enfeebling
we must have been enfeebling
you must have been enfeebling
they must have been enfeebling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not enfeeble
you must not enfeeble
he must not enfeeble
we must not enfeeble
you must not enfeeble
they must not enfeeble 	I must not be enfeebling
you must not be enfeebling
he must not be enfeebling
we must not be enfeebling
you must not be enfeebling
they must not be enfeebling	I must not have enfeebled
you must not have enfeebled
he must not have enfeebled
we must not have enfeebled
you must not have enfeebled
they must not have enfeebled	I must not have been enfeebling
you must not have been enfeebling
he must not have been enfeebling
we must not have been enfeebling
you must not have been enfeebling
they must not have been enfeebling	

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

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