Because of the heavy traffic, I ....
e.g. arrived late to the party.
Since I had a fever, I couldn't ....
e.g. attend the class.
In spite of feeling tired, I ......
e.g. went to the gym.
The reason why I didn't go to the concert was because .....
e.g. the tickets were too expensive.
The reason for not completing my homework was that ......
e.g. I lost my textbook.
Due to the fact that I missed the bus, I ......
e.g. had to walk to school.
Even though I studied all night, I still ....
e.g. failed the exam.
Despite forgetting my umbrella, I decided to ....
e.g. go for a walk in the rain.
Nevertheless, I managed to ......
e.g. finish the project on time.