| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [modal v] then | 2132 |
|
| 2 | [pron] [modal v] ask | 2061 |
|
| 3 | [modal v] then ask | 16 |
|
| 4 | [pron] then ask | 5 |
|
