| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [pron] [been] | 1031 |
|
| 2 | [vb base] [pron] at | 958 |
|
| 3 | [vb base] [been] at | 199 |
|
| 4 | [pron] [been] at | 20 |
|
