I'll take an umbrella. It may rain. CASE
I'll take an umbrella IN CASE it rains
She couldn't attend the meeting. She was sick. AS
She couldn't attend the meeting AS she was sick.
Lucy went to the shop. She needed to buy some food. SO AS
Lucy went to the shop SO AS TO buy some food.
We couldn't go hiking. It was raining heavily. TO
We couldn't go hiking DUE TO the HEAVY rain.
He missed the train. He overslept. SINCE
He missed the train SINCE he overslept.
The meeting was postponed. There was a power outage. OF
The meeting was postponed BECAUSE OF the power outage.
He didn't go to the concert. He had to work. FACT
He didn't go to the concert DUE TO THE FACT THAT he had to work.
She didn't win the competition. She didn't practise enough. BECAUSE
She didn't win the competition BECAUSE she didn't practise enough.
Bob is saving money. He'd like to buy a new car. THAT
Bob is saving money SO THAT he will buy a new car.
He opened the window. He wanted to let the fresh air in. ORDER
He opened the window IN ORDER TO let the fresh air in.
She couldn't hear the announcement. She was talking on the phone. FACT
She couldn't hear the announcement DUE TO THE FACT THAT she was talking on the phone.
They didn't buy the house. The price was too expensive. DUE
They didn't buy the house DUE TO its price.
They canceled the flight. There was a snowstorm. OWING
They canceled the flight OWING to the snowstorm.