| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] [prep] | 2490 |
|
| 2 | [been] used [prep] | 1086 |
|
| 3 | [vb base] [been] used | 498 |
|
| 4 | [vb base] used [prep] | 55 |
|
