| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [verb] for many | 35 |
|
| 2 | has been [verb] for many | 35 |
|
| 3 | [vb -s] been [vb pp] for many | 30 |
|
| 4 | [vb -s] been used for many | 8 |
|
| 5 | [vb -s] been use for many | 8 |
|
| 6 | [vb -s] been [v-ing] for many | 5 |
|
| 7 | [vb -s] been know for many | 5 |
|
| 8 | [vb -s] been known for many | 5 |
|
