| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] for a long time | 29 |
|
| 2 | been [v-ing] for a long time | 23 |
|
| 3 | been know for a long time | 8 |
|
| 4 | been known for a long time | 8 |
|
