| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [modal v] [verb] [prep] a | 3529 |
|
| 2 | [Wh adv] [pron] [modal v] [verb] [prep] | 719 |
|
| 3 | [Wh adv] [pron] [verb] [prep] a | 336 |
|
| 4 | [Wh adv] [pron] [modal v] [verb] a | 237 |
|
