| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb base] [prep] first | 11 |
|
| 2 | they [vb base] [prep] first | 11 |
|
| 3 | they [vb base] at first | 7 |
|
| 4 | they [vb base] at first | 7 |
|
