One conjunction is enough to join two clauses. We do not normally use two.
Because I was ill, I took a day off.
OR
I was ill so I took a day off.
The conjunction ‘because’ is used to express the cause/reason. The conjunction ‘so’ is used to express the effect/result.
Don’t use both because and so in a sentence.
Do not write: Because I was ill, so I took a day off.
Incorrect: Because she was fat, so she couldn’t run fast.
Correct: Because she was fat, she couldn’t run fast.
Correct: She was fat, so she couldn’t run fast.
Complete the following sentences using so or because.
1. ……………….. I loved him, I tried to save him.
2. I loved him, ……………….. I tried to save him.
3. I was not feeling well, ……………….. I decided to consult a doctor.
4. We lost the contract ………………… we couldn’t complete the project.
5. We came back ………………… dad fell ill.
Answers
1. Because I loved him, I tried to save him.
2. I loved him, so I tried to save him.
3. I was not feeling well, so I decided to consult a doctor.
4. We lost the contract because we couldn’t complete the project.
5. We came back because dad fell ill.