I must squander you must squander he must squander we must squander you must squander they must squander
V-ing form
I must be squandering you must be squandering he must be squandering we must be squandering you must be squandering they must be squandering
Perfect
I must have squandered you must have squandered he must have squandered we must have squandered you must have squandered they must have squandered
V-ing perfect
I must have been squandering you must have been squandering he must have been squandering we must have been squandering you must have been squandering they must have been squandering
Negation
Simple form
I mustn't squander you mustn't squander he mustn't squander we mustn't squander you mustn't squander they mustn't squander
V-ing form
I mustn't be squandering you mustn't be squandering he mustn't be squandering we mustn't be squandering you mustn't be squandering they mustn't be squandering
Perfect
I mustn't have squandered you mustn't have squandered he mustn't have squandered we mustn't have squandered you mustn't have squandered they mustn't have squandered
V-ing perfect
I mustn't have been squandering you mustn't have been squandering he mustn't have been squandering we mustn't have been squandering you mustn't have been squandering they mustn't have been squandering
Interrogative form
Simple form
must I squander? must you squander? must he squander? must we squander? must you squander? must they squander?
V-ing form
must I be squandering? must you be squandering? must he be squandering? must we be squandering? must you be squandering? must they be squandering?
Perfect
must I have squandered? must you have squandered? must he have squandered? must we have squandered? must you have squandered? must they have squandered?
V-ing perfect
must I have been squandering? must you have been squandering? must he have been squandering? must we have been squandering? must you have been squandering? must they have been squandering?
Interro-negative form
Simple form
mustn't I squander? mustn't you squander? mustn't he squander? mustn't we squander? mustn't you squander? mustn't they squander?
V-ing form
mustn't I be squandering? mustn't you be squandering? mustn't he be squandering? mustn't we be squandering? mustn't you be squandering? mustn't they be squandering?
Perfect
mustn't I have squandered? mustn't you have squandered? mustn't he have squandered? mustn't we have squandered? mustn't you have squandered? mustn't they have squandered?
V-ing perfect
mustn't I have been squandering? mustn't you have been squandering? mustn't he have been squandering? mustn't we have been squandering? mustn't you have been squandering? mustn't they have been squandering?