| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] | 37436 |
|
| 2 | have been describe | 670 |
|
| 3 | [verb] been describe | 670 |
|
| 4 | [vb -s] been describe | 380 |
|
| 5 | has be describe | 371 |
|
| 6 | has [be] describe | 371 |
|
| 7 | has [been] describe | 371 |
|
