Unit 16: Verbs—Subjunctive Mood

Vocabulary

  • suggest – to give an idea or plan to someone
  • recommend – to advise someone to do something
  • ask – to request something
  • demand – to strongly ask for something
  • insist – to say something must happen
  • necessary – needed or important
  • important – something of value or significance
  • wish – to want something that is not real or possible now
  • regret – to feel sad about the past
  • if – used to talk about possible or imagined situations

Grammar: Present Subjunctive

Use the present subjunctive after verbs like suggest, recommend, ask, demand, insist.

Structure: verb + that + subject + base verb

Example: I suggest that he study more.

Grammar: Past Subjunctive

Use the past subjunctive to talk about wishes or unreal situations in the present.

Structure: wish + subject + past verb

Example: I wish I were taller.

Grammar: Perfect Subjunctive

Use the perfect subjunctive to talk about wishes or unreal situations in the past.

Structure: wish + subject + had + past participle

Example: I wish I had studied harder yesterday.

Subjunctive vs. Indicative after "if"

Use the subjunctive after "if" to describe unreal or hypothetical situations.

Example: If I were rich, I would travel the world. (unreal)

Use the indicative for real possibilities.

Example: If it rains tomorrow, we will stay home. (real)

Classroom suggestion activity
A friendly classroom scene where a teacher is suggesting activities to students, showing students raising hands, simple A1-A2 English learning context

Worked Examples

Example 1: Present Subjunctive

Teacher: I recommend that John practice every day.

Explanation: Use base verb practice after recommend + that + subject.

Example 2: Past Subjunctive

Maria: I wish I knew the answer.

Explanation: Past subjunctive knew shows an unreal present situation.

Example 3: Perfect Subjunctive

Tom: I wish I had studied more last week.

Explanation: Perfect subjunctive had studied shows regret about the past.

🔑 Đáp án & Giải thích

1. Present subjunctive: Sau các động từ như suggest, recommend, insist, ta dùng động từ nguyên mẫu (study, practice).

2. Past subjunctive: Dùng wish + quá khứ (knew) để diễn tả điều không thật ở hiện tại.

3. Perfect subjunctive: Dùng wish + had + quá khứ phân từ (had studied) để diễn tả điều hối tiếc trong quá khứ.

4. Sau "if": dùng subjunctive cho tình huống giả định (If I were rich...) và indicative cho khả năng có thật (If it rains...).