| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [verb] for some | 36 |
|
| 2 | have been [verb] for some | 31 |
|
| 3 | [vb base] been [vb pp] for some | 19 |
|
| 4 | [vb base] been [v-ing] for some | 17 |
|
| 5 | [vb base] been know for some | 5 |
|
| 6 | 've been [verb] for some | 5 |
|
| 7 | [vb base] been known for some | 5 |
|
