| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [prep] a long time | 26 |
|
| 2 | i [vb base] [prep] a long | 13 |
|
| 3 | i [prep] a long time | 10 |
|
| 4 | i [vb base] a long time | 7 |
|
