| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [was/were] causing [art] | 11 |
|
| 2 | [Wh det] was cause [art] | 10 |
|
| 3 | [Wh det] [was/were] cause the | 9 |
|
| 4 | what [was/were] cause [art] | 7 |
|
