| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | reason [Wh adv] [pron] should [verb] | 127 |
|
| 2 | [Wh adv] [pron] should [verb] [pron] | 126 |
|
| 3 | reason [Wh adv] [pron] [verb] [pron] | 50 |
|
