| 1.（なぜならば） |
| I didn't go to the party, before I was tired. |
| I didn't go to the party, after I was tired. |
| I didn't go to the party, because I was tired. |
|
| 2.（前に） |
| I always have breakfast because I go to school. |
| I always have breakfast before I go to school. |
| I always have breakfast after I go to school. |
|
| 3.（後に） |
| We went home because we saw the movie. |
| We went home after we saw the movie. |
| We went home before we saw the movie. |
|
| 4.（前に） |
| It will be close to midnight before the game ends. |
| It will be close to midnight before the game will end. |
|
| 5.（前に） |
| These things will be resolved before the work is completed. |
| These things will be resolved before the work will be completed. |
|
