| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has already been [vb pp] in | 131 |
|
| 2 | has already [been] discussed in | 13 |
|
| 3 | has already [been] mentioned in | 12 |
|
| 4 | has already [been] described in | 6 |
|
| 5 | has already [been] said in | 5 |
|
| 6 | has already [been] seen in | 5 |
|
