| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] because | 55 |
|
| 2 | it [vb past] because | 55 |
|
| 3 | it failed because | 9 |
|
| 4 | it happened because | 6 |
|
| 5 | it did because | 5 |
|
