Conditionals (Types 0, 1 & 2) – English Grammar Exercises For B1
Choose the most appropriate option (A, B, C, or D) to complete each sentence.
1 If your company ______ more than 500 units today, we will offer a 10% discount on the total invoice.
(a) will order
(b) order
(c) orders
(d) ordered
2 We ______ the shipping costs completely free of charge if the total order value exceeds $5,000
(a) cover
(b) will cover
(c) would cover
(d) will covering
3 If we ______ the contract this week, will you be able to deliver the first batch by next Monday?
(a) signed
(b) signs
(c) will sign
(d) sign
4 We won’t be able to provide the extended warranty for free unless you ______ to the new maintenance terms.
(a) agreeing
(b) agree
(c) don’t agree
(d) will agree
5 Provided that your finance team ______ a 30% deposit upfront, we will start mass production immediately.
(a) pays
(b) will pay
(c) pay
(d) paid
6 What compensation ______ if the shipment is delayed due to bad weather at the port?
(a) you will provide
(b) will you provide
(c) do you provide
(d) would you provide
7 If you ______ the price per unit, we will have to look for another supplier to meet our tight budget.
(a) don’t reduce
(b) won’t reduce
(c) not reduce
(d) didn’t reduce
8 As long as the material quality ______ our strict standards, we will sign a two-year partnership agreement with you.
(a) will meet
(b) meeting
(c) met
(d) meets
9 We will grant you the exclusive distribution rights in this region if you ______ to selling 10,000 units annually.
(a) commit
(b) committed
(c) commits
(d) will commit
10 The purchasing department will cancel the pending order unless we ______ the payment confirmation by Friday afternoon.
(a) receives
(b) don’t receive
(c) receive
(d) will receive
11 If the delivery ______ late by more than three days, we will demand a full refund for the transportation fee.
(a) be
(b) is
(c) will be
(d) was
12 We will apply an extra 5% discount if the final payment ______ via bank transfer within 24 hours.
(a) makes
(b) is made
(c) will be made
(d) was made
13 If you increase the purchase quantity to 1,000 units, we ______ the unit price by another two dollars.
(a) would lower
(b) will lower
(c) lowering
(d) lower
14 Our CEO will approve this deal today if your proposed profit margin ______ unchanged.
(a) remain
(b) remained
(c) will remain
(d) remains
15 If we place a massive bulk order right now, ______ the standard processing fee?
(a) do you waive
(b) you will waive
(c) will you waive
(d) would you waive
16 We won’t sign the final agreement if you ______ the delivery schedule at the last minute.
(a) changed
(b) change
(c) will change
(d) changing
17 Supposing you ______ to deliver the goods on time, what exact backup plan will your company use?
(a) will fail
(b) fails
(c) fail
(d) failed
18 We will include a free set of premium samples if your client ______ the premium package.
(a) purchases
(b) purchase
(c) purchased
(d) will purchase
19 If our company accepts these strict payment terms, we ______ priority customer support 24/7
(a) expect
(b) expected
(c) will expect
(d) expecting
20 Unless the manufacturer ______ the quoted price for the next six months, we will not proceed with this negotiation.
(a) will guarantee
(b) guarantees
(c) doesn’t guarantee
(d) guarantee
ANSWER KEY & EXPLANATIONS
1 (c) orders
- Why it is correct (The Key): Type 1 Conditional uses Present Simple in the if-clause for a highly possible future condition. “Your company” is singular.
- Error Analysis: Option (a) “will order” is a Common Mistake (putting future tense in the if-clause). Option (b) “order” is a Structural Error (wrong subject-verb agreement). Option (d) “ordered” is a Strong Distractor (matches Type 2, but the result uses “will offer”).
2 (b) will cover
- Why it is correct (The Key): The main clause in a Type 1 conditional requires “will + base verb” to show the future result of the negotiation.
- Error Analysis: Option (a) “cover” is a Common Mistake (using Present Simple in the main clause, making it a Type 0 general truth instead of a specific deal). Option (d) “will covering” is a Structural Error. Option (c) “would cover” is a Strong Distractor (Type 2, mismatched with present condition “exceeds”).
3 (d) sign
- Why it is correct (The Key): Present Simple is required after “If”. “We” takes the base verb.
- Error Analysis: Option (c) “will sign” is a Common Mistake. Option (b) “signs” is a Structural Error. Option (a) “signed” is a Strong Distractor.
4 (b) agree
- Why it is correct (The Key): “Unless” means “if not”. It requires an affirmative Present Simple verb.
- Error Analysis: Option (c) “don’t agree” is a Common Mistake (creates an illogical double negative: “unless you don’t agree”). Option (a) “agreeing” is a Structural Error. Option (d) “will agree” is a Strong Distractor.
5 (a) pays
- Why it is correct (The Key): “Provided that” functions like “if”. “Finance team” acts as a singular entity here.
- Error Analysis: Option (b) “will pay” is a Common Mistake. Option (c) “pay” is a Structural Error (missing ‘s’). Option (d) “paid” is a Strong Distractor.
6 (b) will you provide
- Why it is correct (The Key): Correct question word order for the future result clause (Modal + Subject + Base Verb).
- Error Analysis: Option (c) “do you provide” is a Common Mistake (Type 0 question, not a specific future negotiation). Option (a) “you will provide” is a Structural Error (statement order). Option (d) “would you provide” is a Strong Distractor.
7 (a) don’t reduce
- Why it is correct (The Key): Negative Present Simple in the if-clause to establish the condition.
- Error Analysis: Option (b) “won’t reduce” is a Common Mistake (using future in the if-clause). Option (c) “not reduce” is a Structural Error (missing auxiliary “do”). Option (d) “didn’t reduce” is a Strong Distractor.
8 (d) meets
- Why it is correct (The Key): “As long as” acts like “if”. “Quality” is an uncountable singular noun, requiring “meets”.
- Error Analysis: Option (a) “will meet” is a Common Mistake. Option (b) “meeting” is a Structural Error. Option (c) “met” is a Strong Distractor.
9 (a) commit
- Why it is correct (The Key): Present simple in the if-clause after “you”.
- Error Analysis: Option (d) “will commit” is a Common Mistake. Option (c) “commits” is a Structural Error. Option (b) “committed” is a Strong Distractor.
10 (c) receive
- Why it is correct (The Key): Affirmative Present Simple after “Unless”. “We” takes the base verb.
- Error Analysis: Option (b) “don’t receive” is a Common Mistake (double negative logic flaw). Option (d) “will receive” is a Common Mistake. Option (a) “receives” is a Structural Error.
11 (b) is
- Why it is correct (The Key): Present Simple of the verb “to be” for a singular subject (“the delivery”).
- Error Analysis: Option (c) “will be” is a Common Mistake. Option (a) “be” is a Structural Error (unconjugated). Option (d) “was” is a Strong Distractor.
12 (b) is made
- Why it is correct (The Key): Present Simple Passive (is + past participle) because the payment is acted upon.
- Error Analysis: Option (c) “will be made” is a Common Mistake. Option (a) “makes” is a Structural Error (payment cannot “make” itself). Option (d) “was made” is a Strong Distractor.
13 (b) will lower
- Why it is correct (The Key): The main clause requires “will + base verb” to state the seller’s commitment.
- Error Analysis: Option (d) “lower” is a Common Mistake. Option (c) “lowering” is a Structural Error. Option (a) “would lower” is a Strong Distractor.
14 (d) remains
- Why it is correct (The Key): Present simple for the condition. “Margin” is singular.
- Error Analysis: Option (c) “will remain” is a Common Mistake. Option (a) “remain” is a Structural Error. Option (b) “remained” is a Strong Distractor.
15 (c) will you waive
- Why it is correct (The Key): Question structure for the future result clause.
- Error Analysis: Option (a) “do you waive” is a Common Mistake. Option (b) “you will waive” is a Structural Error. Option (d) “would you waive” is a Strong Distractor.
16 (b) change
- Why it is correct (The Key): Present simple in the if-clause.
- Error Analysis: Option (c) “will change” is a Common Mistake. Option (d) “changing” is a Structural Error. Option (a) “changed” is a Strong Distractor.
17 (c) fail
- Why it is correct (The Key): “Supposing” acts like “if”. Present simple “fail” matches the future “will happen”.
- Error Analysis: Option (a) “will fail” is a Common Mistake. Option (b) “fails” is a Structural Error (“you” takes base verb). Option (d) “failed” is a Strong Distractor.
18 (a) purchases
- Why it is correct (The Key): Present simple in the if-clause. “Client” is singular.
- Error Analysis: Option (d) “will purchase” is a Common Mistake. Option (b) “purchase” is a Structural Error. Option (c) “purchased” is a Strong Distractor.
19 (c) will expect
- Why it is correct (The Key): Future simple in the result clause based on a present condition.
- Error Analysis: Option (a) “expect” is a Common Mistake. Option (d) “expecting” is a Structural Error. Option (b) “expected” is a Strong Distractor.
20 (b) guarantees
- Why it is correct (The Key): Affirmative present simple after “Unless”. “Manufacturer” is singular.
- Error Analysis: Option (c) “doesn’t guarantee” is a Common Mistake (logical double negative). Option (a) “will guarantee” is a Common Mistake. Option (d) “guarantee” is a Structural Error.
GRAMMAR POINTS TO REMEMBER
- Type 1 Conditional Formula: If + Present Simple, Subject + Will + Base Verb. It is used perfectly in business negotiations to propose win-win scenarios where a realistic condition leads to a guaranteed future action.
- The “Will” Rule: A golden rule for B1 learners—never use will or won’t directly after if, unless, provided that, as long as, or supposing. The future is only expressed in the main result clause.
- “Unless” Logic: Unless already carries a negative meaning (“if not”). Therefore, the verb that follows it must be in the affirmative form. Saying “unless you don’t agree” is a massive B1 common mistake that confuses native speakers, as it literally translates to “if you don’t not agree”.
- Alternative Connectors in Business: Instead of just using “if”, business English relies heavily on provided that (on the strict condition that) and as long as to sound more professional and firm during negotiations. They follow the exact same grammar rules as “if”.