Subjuntive vs Modle

[Naz]

Hello sir,
One of my teachers is very pedantic. He thinks that mostly things in English are obsolet. Even regarding moods he says that it is no more in use. As subjuntive mood or imperative mood- Though he is not a native speaker but still he is expert in English. Now i am very confused what to use.
Regarding MCQs he says that we can insert 'apostrophe' in it.
Sir i always have found this forum as a source of knowldge please give me answers regrding my questions.
Best Regards
Naz

[Haihao]

Both subjunctive mood and imperative mood are in use in modern English.

[Jamie (K)]

The imperative is DEFINITELY used in modern English! We couldn't live without it! I don't know where your teacher gets the idea that it is obsolete. He's certainly never spent time in an English-speaking country. What a crazy idea!

We also definitely use the subjunctive, although a lot of less-educated native speakers don't have much of a command of it. In fact, the subjunctive totally changes the meaning of the sentence. For example:

"It is important that you are at the meeting on time."
= You are already at the meeting, you came on time, and that is important.

"It is important that you be at the meeting on time."
= I am ordering you to come to the meeting on time. (The meeting hasn't started yet.)

[Haihao]

To gild the lily, British English would insert "should" more often: "It is important that you should be at the meeting on time."