I must adopt you must adopt he must adopt we must adopt you must adopt they must adopt
V-ing form
I must be adopting you must be adopting he must be adopting we must be adopting you must be adopting they must be adopting
Perfect
I must have adopted you must have adopted he must have adopted we must have adopted you must have adopted they must have adopted
V-ing perfect
I must have been adopting you must have been adopting he must have been adopting we must have been adopting you must have been adopting they must have been adopting
Negation
Simple form
I must not adopt you must not adopt he must not adopt we must not adopt you must not adopt they must not adopt
V-ing form
I must not be adopting you must not be adopting he must not be adopting we must not be adopting you must not be adopting they must not be adopting
Perfect
I must not have adopted you must not have adopted he must not have adopted we must not have adopted you must not have adopted they must not have adopted
V-ing perfect
I must not have been adopting you must not have been adopting he must not have been adopting we must not have been adopting you must not have been adopting they must not have been adopting
Interrogative form
Simple form
must I adopt? must you adopt? must he adopt? must we adopt? must you adopt? must they adopt?
V-ing form
must I be adopting? must you be adopting? must he be adopting? must we be adopting? must you be adopting? must they be adopting?
Perfect
must I have adopted? must you have adopted? must he have adopted? must we have adopted? must you have adopted? must they have adopted?
V-ing perfect
must I have been adopting? must you have been adopting? must he have been adopting? must we have been adopting? must you have been adopting? must they have been adopting?
Interro-negative form
Simple form
must I not adopt? must you not adopt? must he not adopt? must we not adopt? must you not adopt? must they not adopt?
V-ing form
must I not be adopting? must you not be adopting? must he not be adopting? must we not be adopting? must you not be adopting? must they not be adopting?
Perfect
must I not have adopted? must you not have adopted? must he not have adopted? must we not have adopted? must you not have adopted? must they not have adopted?
V-ing perfect
must I not have been adopting? must you not have been adopting? must he not have been adopting? must we not have been adopting? must you not have been adopting? must they not have been adopting?