| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did [pron] [adv] | 1898 |
|
| 2 | [pron] [adv] happen | 954 |
|
| 3 | did [adv] happen | 209 |
|
| 4 | did [pron] happen | 77 |
|
