Is it adjective or verb and why?

Question

In these sentences i think the words in brackets are adjectives.please confirm me whether they are adjectives or verbs and please tell the reason too.

''I am getting bored''.

''Discipline should be maintained''.

''My mobile is not charged''.

Answer 1

ok first one 'am getting' is the verb

second one 'be maintained'

and last one 'charged'