| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [verb] for some time | 26 |
|
| 2 | have been [verb] [prep] some time | 24 |
|
| 3 | [vb base] been [v-ing] [prep] some time | 17 |
|
| 4 | [vb base] been [vb pp] [prep] some time | 10 |
|
