| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] been [v-ing] [prep] | 1396 |
|
| 2 | since [pron] [vb base] been [prep] | 40 |
|
| 3 | since [pron] [vb base] been [v-ing] | 26 |
|
