[Grammar] Cause - effect relationship

CAUSE

1. BECAUSE
- Because I was sleep, I went to bed early last night.
- I went to bed early last night because I was sleep.
2. SINCE
- Since he wasn't feeling well, he decided to stay home and not go to work.
3. NOW WHAT
Now what the project is finished, I'm going to rest a few days and then take a trip. (" Now that": for present and future situations)
4. AS
As she had too much to do, she called up a friend and asked him if he could lend a hand.
5. FOR
Many of us because stressed, for we constantly work late at night.
6. BECAUSE OF
Because of a great number of urgent work, we never seem to have enough time.
7. DUE TO
Due to the amount of work, we are always under pressure.
8. OWING TO
Universal Games is considered the biggest owing to the large number of its staff.
9. ON ACCOUNT OF
On account of the number of its staff members, Universal Games is considered the biggest game cooperation in the world.

EFFECT

1. SO
We have more work than we can handle, so many of us feel stressed.
2. THEREFORE
We often come home late from work; therefore, we have little time for our family.
3. THUS
The deadlines here are very tight; thus, strictly following the timeline is number one in our company.
4. AS A RESULT
We completed our project a week ahead of time. As a result, we are allowed a week off.
5. AS A CONSEQUENCE
Time has been coming late for more than a month. As a consequence, he was given a verbal reminder.