Grammar Answers – If and When

–This section will cover a broad range of different grammar rules and explanations to help you understand sentence structure and improve awareness of English grammar.
Distinguishing the difference between "when" and "if":
Check your understanding by selecting the correct answer below: 
Read each of the following of sentences and select the best answer. Print out this lesson plan and ask your teacher to assist you in understanding the grammar rules.


1 Don’t worry (when/if) I am late tonight. You all should start eating without me.
2 Samantha will come for dinner tonight. (When/If) she comes, could you call me?
3 I’m going to France next week. (When/If) I’m there, I will visit my college friend.
4 I am absolutely confident Shinichi will get the job. I will be very surprised (when/if) he doesn’t.
5 I’m going to the store so (when/if) you need anything let me know.
6 I’m going away for the weekend but (when/if) you need to contact me, I left my contact information with my assistant.
7 I would like for you to come to the party, but (when/if) you prefer not to go, I would understand.
8 (When/If) you rather stay in for dinner tonight, I can whip up something really quick.
9 What do you do (when/if) you are upset about something?
10 (When/If) Stacey mentioned that she had a stomache ache, everyone thought she was faking it to avoid attending the meeting.
1. If 2. When 3. When 4. If 5. If 6. If 7. If 8. If 9. When 10. When
Moderate level exercises:
Read each of the following of sentences and write the correct form of the word in (parenthesis) using the present or past form using if/when. Print out this lesson plan and ask your teacher to assist you in understanding the grammar rules.


1 Would they be offended _________________ (we/ not/ go) to their party.
2 _________________ (I/ know) his number, don’t you think I would call him.
3 He will get back to me with the specifics of the time/day of the meeting. _________________, (I / know) you will be the first one I inform..
4 There is abolutely no chance that Sarah and John will get married. I would be totally surprised ________________ . (they/ do)
5 Do you believe alot of people will show up to the party _________________ (it / hold) next week?
6 My wife gave me a beautiful watch for my birthday. She would be very pissed off _________________ (I/ lose) it.
7 Many people would be out of work _________________. (factory/close down).
8 Would Stephen mind _________________ (I/borrow) his
9 Tom’s flight is arriving tomorrow. What are you going to do _________________ (he / come) here tomorrow?
10 _________________ (you/have) only one wish, what would you wish for?
1. if we didn’t 2. If I knew 3. When I know 4. if they did 5. when it is held 6. if I lost 7. if the factory closed down 8. if I borrowd 9. when he comes 10. If you had
Difficult level exercises:
Read each of the following sentences and rewrite the sentence using the past conditional form:
1 I woke up late this morning because my alarm didn’t go off.
But if ___________________________________________________________.
2 I am going to take a vacation next week because my work is not busy.
But if ___________________________________________________________.
3 My boss gave me a promotion so my salary will increase from next month.
But if ___________________________________________________________.
4 I need to buy a new TV this week because my TV stopped working this morning.
But if ___________________________________________________________.
5 I was not able to attend the conference because my wife was sick.
But if ___________________________________________________________.