Imperative Mood makes a request.
Subjunctive Mood expresses a doubtful condition (contrary to fact) and is often used with an "if" clause.
The following verbs often attract the subjunctive mood: ask, recommend, suggest, wish, insist, order, commend, request, and demand.A verb in the subjunctive mood may have a different form. The subjunctive for the present tense third-person singular drops the s or es so that it looks and sounds like the present tense for everything else. In the subjunctive mood, the verb to be is be in the present tense and were in the past tense, regardless of what the subject is.
Q. Write the correct form of the verb given.
(i) I insist that Jennifer ____ (finish) her meal.
(ii) She suggests that the office ____ (be) closed today.
(iii) If I ____ (be) you, I would win the game.
(iv) I wish I ____ (can) fly.
Q. Choose the correct sentence from the following.
(i) I wish I was able to buy this car.
(ii) It were recommended that the company closes its foreign offices.
(iii) If Jack were 17 years old, he would apply for the university.
(iv) Our manager insists that the group is reorganized.
(i) I wish I would be able to buy this car
(ii) It was recommended that the company closed its foreign offices.
(iv) Our manager insists that the group be reorganized.