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Zero Conditional Q11-15
Zero Conditional
Masterclass Quiz
Advanced Zero Conditional
The Basic Formula
If/When + Present Simple , Present Simple
// Used for universal truths, scientific facts, routines, and physical laws.
1. Negative Conditionals
Unless means “if not”. It introduces conditions where standard patterns are inverted. Other structures like provided that or as long as behave like conditional synonyms of “if”.
Unless a metal undergoes heat, it retains its form.
2. Formal Inversion
Advanced conditionals often replace “If” with Should to indicate high formality. This causes the subject to use the **bare infinitive** (base form) of the verb.
Should the alarm sound… (NOT “sounds”)
3. Gerund Phrases as Subjects
When the subject of a clause starts with a gerund (an -ing verb), the clause is structurally considered a singular noun concept.
Constantly questioning author sources fosters deep critical thinking.