Thức giả định (subjunctive): that he be, were it not for, should + V

# Subjunctive Mood (formal/literary: that he be, were it not for, should + V)

The subjunctive mood is a verb form used to express hypothetical, desired, or mandated situations. At the C1 level, mastering the subjunctive is essential for achieving a formal, academic tone in IELTS Writing Task 2 and Speaking Part 3. This lesson covers three key structures: the mandative subjunctive, the hypothetical were, and inverted conditionals with should.

1. Mandative Subjunctive

Used after verbs or adjectives expressing demand, suggestion, recommendation, or necessity. The subjunctive verb is the base form (no -s, no tense).

Formula: Subject + demand/suggest/recommend/insist/ask/propose + that + subject + base verb

• The professor insisted that the report be submitted on time.
• It is essential that every student complete the assignment.

When to use: In formal writing, such as essays, letters of recommendation, or official documents. Avoid using should (e.g., ...that he should leave), which is less formal.

2. Hypothetical Were

Used in unreal conditions (present/future) or with as if/as though. The verb were is used for all subjects (I, he, she, it, they).

Formula: If + subject + were + (to + verb) / noun / adjective OR Were + subject + to + verb

• If she were to apply, she would get the job.
• He talks as if he were the expert.
• Were it not for your help, I would have failed.

When to use: To express hypothetical or contrary-to-fact situations. The inverted form (Were she to...) is particularly formal and impressive in essays.

3. Inverted Conditionals with Should

Used in formal conditionals for unlikely future events. Inversion removes if and places should before the subject.

Formula: Should + subject + verb (base form), subject + will/would/can + verb

• Should this occur, the consequences would be severe.
• Should you need further information, please contact us.

When to use: In formal reports, proposals, or academic writing to sound sophisticated. Equivalent to If this should occur...

Academic Writing Tips

• Use the mandative subjunctive after verbs like recommend, suggest, propose, demand in Task 2 essays to argue for policies or solutions.
• Use were in hypotheticals to discuss counterfactual scenarios (e.g., If the government were to invest more...).
• Use inverted conditionals with should to discuss potential risks or recommendations (e.g., Should the trend continue...).
• Avoid mixing subjunctive with would in the that-clause (e.g., I suggest that he would leave is incorrect).