Expressing Purpose
Rewrite the sentence using the expression in brackets. I used to avoid responsibility because I didn't want to make mistakes. (so as)
I used to avoid responsibility so as not to make mistakes.
Rewrite the sentence using the expression in brackets. Helen switches off her phone when she's writing because she needs to concentrate. (in order)
Helen switches off her phone when she's writing in order that she can concentrate/ in order to concentrate.
Why did he bring his umbrella? (avoid)
To avoid getting caught in the rain