| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb base] been [v-ing] | 2165 |
|
| 2 | [vb base] been [v-ing] at | 159 |
|
| 3 | i [vb base] [v-ing] at | 52 |
|
| 4 | i [vb base] been at | 41 |
|
