must lend-lease
Regular verb: lend-lease - lend-leased- lend-leased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must lend-lease
you must lend-lease
he must lend-lease
we must lend-lease
you must lend-lease
they must lend-lease 	I must be lend-leasing
you must be lend-leasing
he must be lend-leasing
we must be lend-leasing
you must be lend-leasing
they must be lend-leasing	I must have lend-leased
you must have lend-leased
he must have lend-leased
we must have lend-leased
you must have lend-leased
they must have lend-leased	I must have been lend-leasing
you must have been lend-leasing
he must have been lend-leasing
we must have been lend-leasing
you must have been lend-leasing
they must have been lend-leasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't lend-lease
you mustn't lend-lease
he mustn't lend-lease
we mustn't lend-lease
you mustn't lend-lease
they mustn't lend-lease 	I mustn't be lend-leasing
you mustn't be lend-leasing
he mustn't be lend-leasing
we mustn't be lend-leasing
you mustn't be lend-leasing
they mustn't be lend-leasing	I mustn't have lend-leased
you mustn't have lend-leased
he mustn't have lend-leased
we mustn't have lend-leased
you mustn't have lend-leased
they mustn't have lend-leased	I mustn't have been lend-leasing
you mustn't have been lend-leasing
he mustn't have been lend-leasing
we mustn't have been lend-leasing
you mustn't have been lend-leasing
they mustn't have been lend-leasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I lend-lease?
must you lend-lease?
must he lend-lease?
must we lend-lease?
must you lend-lease?
must they lend-lease? 	must I be lend-leasing?
must you be lend-leasing?
must he be lend-leasing?
must we be lend-leasing?
must you be lend-leasing?
must they be lend-leasing? 	must I have lend-leased?
must you have lend-leased?
must he have lend-leased?
must we have lend-leased?
must you have lend-leased?
must they have lend-leased? 	must I have been lend-leasing?
must you have been lend-leasing?
must he have been lend-leasing?
must we have been lend-leasing?
must you have been lend-leasing?
must they have been lend-leasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I lend-lease?
mustn't you lend-lease?
mustn't he lend-lease?
mustn't we lend-lease?
mustn't you lend-lease?
mustn't they lend-lease? 	mustn't I be lend-leasing?
mustn't you be lend-leasing?
mustn't he be lend-leasing?
mustn't we be lend-leasing?
mustn't you be lend-leasing?
mustn't they be lend-leasing? 	mustn't I have lend-leased?
mustn't you have lend-leased?
mustn't he have lend-leased?
mustn't we have lend-leased?
mustn't you have lend-leased?
mustn't they have lend-leased? 	mustn't I have been lend-leasing?
mustn't you have been lend-leasing?
mustn't he have been lend-leasing?
mustn't we have been lend-leasing?
mustn't you have been lend-leasing?
mustn't they have been lend-leasing?