| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] it [was/were] | 5473 |
|
| 2 | it [was/were] because | 419 |
|
| 3 | [vb past] it because | 136 |
|
| 4 | [vb past] [was/were] because | 5 |
|
