| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] reason why an | 12 |
|
| 2 | [adj] reason [Wh adv] an | 7 |
|
| 3 | [adj] reasons [Wh adv] an | 6 |
|
| 4 | [adj] reason [Wh adv] an | 6 |
|
