English verb conjugation
MUST SELECT

Regular verb: select - selected - selected

Affirmation

Simple form	V-ing form
I must select you must select he must select we must select you must select they must select	I must be selecting you must be selecting he must be selecting we must be selecting you must be selecting they must be selecting
Perfect	V-ing perfect
I must have selected you must have selected he must have selected we must have selected you must have selected they must have selected	I must have been selecting you must have been selecting he must have been selecting we must have been selecting you must have been selecting they must have been selecting

Negation

Simple form	V-ing form
I mustn't select you mustn't select he mustn't select we mustn't select you mustn't select they mustn't select	I mustn't be selecting you mustn't be selecting he mustn't be selecting we mustn't be selecting you mustn't be selecting they mustn't be selecting
Perfect	V-ing perfect
I mustn't have selected you mustn't have selected he mustn't have selected we mustn't have selected you mustn't have selected they mustn't have selected	I mustn't have been selecting you mustn't have been selecting he mustn't have been selecting we mustn't have been selecting you mustn't have been selecting they mustn't have been selecting

Interrogative form

Simple form	V-ing form
must I select? must you select? must he select? must we select? must you select? must they select?	must I be selecting? must you be selecting? must he be selecting? must we be selecting? must you be selecting? must they be selecting?
Perfect	V-ing perfect
must I have selected? must you have selected? must he have selected? must we have selected? must you have selected? must they have selected?	must I have been selecting? must you have been selecting? must he have been selecting? must we have been selecting? must you have been selecting? must they have been selecting?

Interro-negative form

Simple form	V-ing form
mustn't I select? mustn't you select? mustn't he select? mustn't we select? mustn't you select? mustn't they select?	mustn't I be selecting? mustn't you be selecting? mustn't he be selecting? mustn't we be selecting? mustn't you be selecting? mustn't they be selecting?
Perfect	V-ing perfect
mustn't I have selected? mustn't you have selected? mustn't he have selected? mustn't we have selected? mustn't you have selected? mustn't they have selected?	mustn't I have been selecting? mustn't you have been selecting? mustn't he have been selecting? mustn't we have been selecting? mustn't you have been selecting? mustn't they have been selecting?