The subjunctive is used in a few specific English patterns, not in every sentence with a special feeling. In modern English, the most common uses are after verbs like suggest, recommend, and insist, and in fixed expressions like It is important that... or I wish....

When English uses the subjunctive

1) After verbs that express advice, demand, or importance

Use the base form of the verb after these verbs, even with he/she/it.

  • The manager suggested that he take the earlier train.
  • I recommend that she apply now.
  • They insisted that the report be ready today.

Notice that the verb does not change to takes, applies, or is in this pattern. That is the subjunctive form.

This pattern is common in formal English, especially in writing. In everyday speech, many speakers also use should:

  • The manager suggested that he should take the earlier train.
  • I recommend that she should apply now.

Both are natural. The version without should is often more formal.

2) After adjectives that show importance, necessity, or urgency

Use the base form after expressions such as important, necessary, essential, vital, and urgent when they are followed by that.

  • It is important that everyone arrive on time.
  • It is necessary that the form be signed.
  • It is vital that he understand the rules.

Again, arrives, is, and understands are not the usual forms in this structure.

3) In a few fixed phrases

English also uses the subjunctive in some fixed expressions:

  • God save the King/Queen.
  • Long live the team!
  • So be it.

These are less common in everyday conversation, but learners still meet them in writing, speeches, and older texts.

4) After “I wish” and similar unreal situations

With I wish, English usually uses a past form to talk about a present situation that is unreal or disappointing.

  • I wish I knew the answer.
  • She wishes she had more time.

For past regrets, English usually uses had + past participle:

  • I wish I had studied harder.
  • They wish they had left earlier.

This is related to the subjunctive idea of unreality, but it is not the same pattern as suggest that he take.... Many learners mix these up.

What the subjunctive is not

English does not use the subjunctive in most ordinary statements.

  • She knows the answer.
  • He goes to work by train.
  • They are ready.

These are normal present-tense forms, not subjunctive forms.

Also, not every sentence with if uses the subjunctive. Compare:

  • If he is late, start without him.
  • If he were late, we would start without him.

Use were for an unreal or hypothetical situation, especially in formal English. In everyday English, many speakers also say was in this kind of sentence, especially in speech:

  • If I was rude, I’m sorry.
  • If I were rude, I’d apologize.

Both appear in real English, but were is the traditional subjunctive form in hypothetical statements.

Common mistakes

A very common mistake is adding -s to the verb after a subjunctive trigger:

  • Incorrect: They suggested that he goes early.
  • Correct: They suggested that he go early.

Another mistake is using the ordinary present form after important that:

  • Incorrect: It is necessary that she is here.
  • Correct: It is necessary that she be here.

If you are not sure, check whether the sentence expresses advice, necessity, demand, or an unreal situation. If it does, the base form or were may be the right choice.

Quick check

Subjunctive practice

  1. The teacher insisted that every student early for the exam.

  2. It is important that the letter signed before noon.

  3. I wish I more time to finish the project.

  4. If I the manager, I would change the schedule.

Answers and explanations
  1. arrive · Also accepted: should arrive

    After insist that, English often uses the base form: arrive. In more everyday speech, should arrive is also natural.

  2. be · Also accepted: should be

    After it is important that, the verb stays in the base form: be. Some speakers also use should be, especially in less formal English.

  3. had

    I wish + past form is used for a present situation that is unreal or disappointing.

  4. were · Also accepted: was

    Were is the traditional subjunctive form for unreal or hypothetical situations. Was is also used by many speakers in everyday English, especially in speech.