Level 09 – Step 08 : Conditional Connectives (in case / as long as / unless) (Take an umbrella in case it rains. You can join as long as you finish.)
/Level 09 – Step 08 : Conditional Connectives (in case / as long as / unless) (Take an umbrella in case it rains. You can join as long as you finish.)
🚪 Let’s Begin
/🚪 Let’s Begin
🦉Professor Owl: Today we will learn three useful conditional connectives: in case, as long as, and unless.
/🦉Professor Owl: Today we will learn three useful conditional connectives: in case, as long as, and unless.
🐧Igupen: They all talk about conditions, but how are they different?
/🐧Igupen: They all talk about conditions, but how are they different?
🦉Professor Owl: Good question.
/🦉Professor Owl: Good question.
Each one shows a different kind of condition — precaution, requirement, or exception.
/Each one shows a different kind of condition — precaution, requirement, or exception.
We’ll look at simple rules and many examples.
/We’ll look at simple rules and many examples.
📚 Lesson
/📚 Lesson
What do these connectives mean?
/What do these connectives mean?
in case — used to prepare for a possible event; it shows precaution.
/in case — used to prepare for a possible event; it shows precaution.
Example: Take an umbrella in case it rains.
/Example: Take an umbrella in case it rains.
as long as — used to say a condition that must be true for something else to happen; it shows a requirement or limit.
/as long as — used to say a condition that must be true for something else to happen; it shows a requirement or limit.
Example: You can join as long as you finish.
/Example: You can join as long as you finish.
unless — means “if not”; it gives an exception or negative condition.
/unless — means “if not”; it gives an exception or negative condition.
Example: I will go unless it rains.
/Example: I will go unless it rains.
Form and short rules
/Form and short rules
in case + clause: Take X in case Y happens. (Precaution)
/in case + clause: Take X in case Y happens. (Precaution)
as long as + clause: You can do A as long as B is true. (Permission with condition)
/as long as + clause: You can do A as long as B is true. (Permission with condition)
unless + clause: Do A unless B happens = Do A if B does not happen. (Negative condition)
/unless + clause: Do A unless B happens = Do A if B does not happen. (Negative condition)
Use simple tense choices.
/Use simple tense choices.
in case often uses present or future: in case it rains / in case she calls.
/in case often uses present or future: in case it rains / in case she calls.
as long as uses present simple for general conditions: as long as you study.
/as long as uses present simple for general conditions: as long as you study.
unless replaces if not: I’ll come unless I’m sick.
/unless replaces if not: I’ll come unless I’m sick.
🦉Professor Owl’s one-point tip
/🦉Professor Owl’s one-point tip
If you can replace the clause with “if not,” you can usually use unless.
/If you can replace the clause with “if not,” you can usually use unless.
If you want to prepare before something may happen, choose in case.
/If you want to prepare before something may happen, choose in case.
If you want to set a rule, use as long as.
/If you want to set a rule, use as long as.
Quick checks inside the lesson
/Quick checks inside the lesson
Which shows preparation? in case.
/Which shows preparation? in case.
Which shows requirement? as long as.
/Which shows requirement? as long as.
Which means “if not”? unless.
/Which means “if not”? unless.
🌼 Sample Sentences
/🌼 Sample Sentences
No.01 Take an umbrella in case it rains.
/No.01 Take an umbrella in case it rains.
No.02 Bring snacks in case we get hungry.
/No.02 Bring snacks in case we get hungry.
No.03 You can join the club as long as you pay the fee.
/No.03 You can join the club as long as you pay the fee.
No.04 You can play outside as long as you wear a helmet.
/No.04 You can play outside as long as you wear a helmet.
No.05 I won’t call him unless it is urgent.
/No.05 I won’t call him unless it is urgent.
No.06 Don’t tell anyone unless the teacher says it’s okay.
/No.06 Don’t tell anyone unless the teacher says it’s okay.
No.07 Pack a sweater in case the room is cold.
/No.07 Pack a sweater in case the room is cold.
No.08 We will go to the park as long as the weather is nice.
/No.08 We will go to the park as long as the weather is nice.
No.09 I’ll wait here unless you come back quickly.
/No.09 I’ll wait here unless you come back quickly.
No.10 Save your work often in case the computer crashes.
/No.10 Save your work often in case the computer crashes.
🎓 Practice exercises
/🎓 Practice exercises
Note: Think first, then check the answers.
/Note: Think first, then check the answers.
Q1: Choose the best connective: “_____ you finish your homework, you can watch TV.” (options: in case / as long as / unless)
/Q1: Choose the best connective: “_____ you finish your homework, you can watch TV.” (options: in case / as long as / unless)
Q2: Fill in the blank: “Take a map _____ you get lost.”
/Q2: Fill in the blank: “Take a map _____ you get lost.”
Q3: True or False: “Unless” can mean the same as “if not.”
/Q3: True or False: “Unless” can mean the same as “if not.”
Q4: Choose the correct sentence: A) I’ll bring a jacket as long as it is cold. B) I’ll bring a jacket in case it is cold. (Which is a precaution?)
/Q4: Choose the correct sentence: A) I’ll bring a jacket as long as it is cold. B) I’ll bring a jacket in case it is cold. (Which is a precaution?)
Q5: Rewrite using “unless”: “I will not go if it rains.”
/Q5: Rewrite using “unless”: “I will not go if it rains.”
Q6: Fill in the blank: “You may use the lab _____ you follow the safety rules.”
/Q6: Fill in the blank: “You may use the lab _____ you follow the safety rules.”
Q7: Choose the best connective: “Don’t leave the door open _____ the cat escapes.” (options: in case / as long as / unless)
/Q7: Choose the best connective: “Don’t leave the door open _____ the cat escapes.” (options: in case / as long as / unless)
Q8: Fill in the blank with “in case” or “as long as”: “_____ you need help, ask me.”
/Q8: Fill in the blank with “in case” or “as long as”: “_____ you need help, ask me.”
Q9: Multiple choice: Which sentence shows a rule or requirement? A) We packed water in case the hike is long. B) You can enter as long as you have a ticket.
/Q9: Multiple choice: Which sentence shows a rule or requirement? A) We packed water in case the hike is long. B) You can enter as long as you have a ticket.
Q10: Rewrite using “in case”: “Bring a flashlight if the power goes out.”
/Q10: Rewrite using “in case”: “Bring a flashlight if the power goes out.”
◆ Answers
/◆ Answers
A1: as long as
/A1: as long as
A2: in case
/A2: in case
A3: True
/A3: True
A4: B is a precaution — correct answer: B
/A4: B is a precaution — correct answer: B
A5: I will not go unless it rains.
/A5: I will not go unless it rains.
A6: as long as
/A6: as long as
A7: in case
/A7: in case
A8: in case
/A8: in case
A9: B
/A9: B
A10: Bring a flashlight in case the power goes out.
/A10: Bring a flashlight in case the power goes out.
🦉 Closing
/🦉 Closing
🦉Professor Owl: Nice work.
/🦉Professor Owl: Nice work.
Remember: use in case to prepare, as long as to set a rule, and unless for negative conditions.
/Remember: use in case to prepare, as long as to set a rule, and unless for negative conditions.
🐧Igupen: I’ll pack things in case, follow rules as long as I must, and use unless when I mean “if not.”
/🐧Igupen: I’ll pack things in case, follow rules as long as I must, and use unless when I mean “if not.”
🦉Professor Owl: Keep practicing these patterns.
/🦉Professor Owl: Keep practicing these patterns.
Try writing three sentences — one with each connective — and notice them in books or conversations.
/Try writing three sentences — one with each connective — and notice them in books or conversations.
You’re making steady progress.
/You’re making steady progress.
