must spend
Irregular verb: spend - spent- spent

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must spend
you must spend
he must spend
we must spend
you must spend
they must spend 	I must be spending
you must be spending
he must be spending
we must be spending
you must be spending
they must be spending	I must have spent
you must have spent
he must have spent
we must have spent
you must have spent
they must have spent	I must have been spending
you must have been spending
he must have been spending
we must have been spending
you must have been spending
they must have been spending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't spend
you mustn't spend
he mustn't spend
we mustn't spend
you mustn't spend
they mustn't spend 	I mustn't be spending
you mustn't be spending
he mustn't be spending
we mustn't be spending
you mustn't be spending
they mustn't be spending	I mustn't have spent
you mustn't have spent
he mustn't have spent
we mustn't have spent
you mustn't have spent
they mustn't have spent	I mustn't have been spending
you mustn't have been spending
he mustn't have been spending
we mustn't have been spending
you mustn't have been spending
they mustn't have been spending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I spend?
must you spend?
must he spend?
must we spend?
must you spend?
must they spend? 	must I be spending?
must you be spending?
must he be spending?
must we be spending?
must you be spending?
must they be spending? 	must I have spent?
must you have spent?
must he have spent?
must we have spent?
must you have spent?
must they have spent? 	must I have been spending?
must you have been spending?
must he have been spending?
must we have been spending?
must you have been spending?
must they have been spending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I spend?
mustn't you spend?
mustn't he spend?
mustn't we spend?
mustn't you spend?
mustn't they spend? 	mustn't I be spending?
mustn't you be spending?
mustn't he be spending?
mustn't we be spending?
mustn't you be spending?
mustn't they be spending? 	mustn't I have spent?
mustn't you have spent?
mustn't he have spent?
mustn't we have spent?
mustn't you have spent?
mustn't they have spent? 	mustn't I have been spending?
mustn't you have been spending?
mustn't he have been spending?
mustn't we have been spending?
mustn't you have been spending?
mustn't they have been spending?