must impend
Regular verb: impend - impended- impended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must impend
you must impend
he must impend
we must impend
you must impend
they must impend 	I must be impending
you must be impending
he must be impending
we must be impending
you must be impending
they must be impending	I must have impended
you must have impended
he must have impended
we must have impended
you must have impended
they must have impended	I must have been impending
you must have been impending
he must have been impending
we must have been impending
you must have been impending
they must have been impending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't impend
you mustn't impend
he mustn't impend
we mustn't impend
you mustn't impend
they mustn't impend 	I mustn't be impending
you mustn't be impending
he mustn't be impending
we mustn't be impending
you mustn't be impending
they mustn't be impending	I mustn't have impended
you mustn't have impended
he mustn't have impended
we mustn't have impended
you mustn't have impended
they mustn't have impended	I mustn't have been impending
you mustn't have been impending
he mustn't have been impending
we mustn't have been impending
you mustn't have been impending
they mustn't have been impending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I impend?
must you impend?
must he impend?
must we impend?
must you impend?
must they impend? 	must I be impending?
must you be impending?
must he be impending?
must we be impending?
must you be impending?
must they be impending? 	must I have impended?
must you have impended?
must he have impended?
must we have impended?
must you have impended?
must they have impended? 	must I have been impending?
must you have been impending?
must he have been impending?
must we have been impending?
must you have been impending?
must they have been impending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I impend?
mustn't you impend?
mustn't he impend?
mustn't we impend?
mustn't you impend?
mustn't they impend? 	mustn't I be impending?
mustn't you be impending?
mustn't he be impending?
mustn't we be impending?
mustn't you be impending?
mustn't they be impending? 	mustn't I have impended?
mustn't you have impended?
mustn't he have impended?
mustn't we have impended?
mustn't you have impended?
mustn't they have impended? 	mustn't I have been impending?
mustn't you have been impending?
mustn't he have been impending?
mustn't we have been impending?
mustn't you have been impending?
mustn't they have been impending?