| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it have been [vb pp] for | 33 |
|
| 2 | [subord] it had [been] [vb pp] for | 16 |
|
| 3 | [subord] it has [been] [vb pp] for | 13 |
|
| 4 | if it have [been] [vb pp] for | 10 |
|
| 5 | as it have [been] [vb pp] for | 7 |
|
