English Grammar Test English Grammar Conditional Sentences 1 — Questions and Answers
Question 1: Which sentence is an example of a zero conditional?
- If it rains, I will stay home.
- If water reaches 100°C, it boils. (Correct answer)
- If I had money, I would buy a car.
- If she had studied, she would have passed.
Correct answer: If water reaches 100°C, it boils.
The zero conditional uses simple present in both clauses to express universal truths or scientific facts that are always true.
Question 2: Which sentence correctly uses the first conditional?
- If I would see him, I will tell him.
- If she studies hard, she will pass the exam. (Correct answer)
- If he had enough money, he would travel.
- If they had left earlier, they would have arrived on time.
Correct answer: If she studies hard, she will pass the exam.
The first conditional uses 'if + simple present' in the condition clause and 'will + base infinitive' in the result clause to describe real future possibilities.
Question 3: Which sentence correctly demonstrates the second conditional?
- If I am rich, I will buy a mansion.
- If she had studied, she would have passed.
- If I were rich, I would buy a mansion. (Correct answer)
- If it rains, bring an umbrella.
Correct answer: If I were rich, I would buy a mansion.
The second conditional uses 'if + simple past' (or 'were' for all persons with 'be') and 'would + base infinitive' to describe hypothetical or unlikely present and future situations.
Question 4: Which sentence is an example of the third conditional?
- If I had more time, I would learn Spanish.
- If she doesn't hurry, she will miss the bus.
- If they had prepared better, they would have won the competition. (Correct answer)
- If you heat ice, it melts.
Correct answer: If they had prepared better, they would have won the competition.
The third conditional uses 'if + past perfect' and 'would have + past participle' to speculate about unreal situations and their outcomes in the past.
Question 5: Choose the correct form: 'If I _____ the lottery, I would retire immediately.'
- win
- will win
- won (Correct answer)
- had won
Correct answer: won
This is a second conditional sentence describing a hypothetical present situation, so the if-clause requires the simple past tense ('won').
Question 6: Which sentence uses 'unless' correctly in a conditional?
- Unless you don't study, you will fail.
- Unless you study, you will fail. (Correct answer)
- Unless you had studied, you would have failed.
- Unless you will study, you fail.
Correct answer: Unless you study, you will fail.
'Unless' already means 'if not,' so pairing it with a negative verb (don't) creates a double negative; 'Unless you study' correctly means 'If you don't study.'
Question 7: Which sentence is an example of a mixed conditional linking a past condition to a present result?
- If I had slept earlier, I would have felt better.
- If I had slept earlier, I would feel better now. (Correct answer)
- If I sleep earlier, I will feel better.
- If I slept earlier, I would feel better.
Correct answer: If I had slept earlier, I would feel better now.
A mixed conditional combines past perfect in the if-clause with 'would + base infinitive' in the result clause to show how a past action affects the present situation.
English Grammar Test English Grammar Conditional Sentences 1
Which sentence is an example of a zero conditional?