1). (i) All assignments have been marked fairly.
Present Tense; Perfect Aspect
(ii) The new management will be in operation after the start of the month.
No Tense; Simple Aspect
(iii) Brad must have been worrying about his exam.
No Tense; Perfect-Progressive Aspect
(iv) Free drinks were offered at the conference dinner.
Past Tense; Simple Aspect
(v) They had unexpectedly arrived in time for the start of the concert.
Past Tense; Perfect Aspect
(vi) These were appalling examples of political corruption
Past Tense; Simple Aspect
2) (i) Present tense; Perfect aspect. I have talked to her about the incident. (ii) Past tense; Simple Aspect.
She went to the class totally unprepared.
(iii) Present tense; Perfect & Progressive aspect.
They have been waiting for the results of the discussion for 2 hours now.
(iv) No Tense; Progressive Aspect
He must be walking to the office right now.
3)(i) Lawrie enjoys a beer before dinner. ...