| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] be [vb pp] for | 51 |
|
| 2 | it [vb past] been [vb pp] for | 49 |
|
| 3 | it had be [vb pp] for | 48 |
|
| 4 | it [vb past] be known for | 6 |
|
| 5 | it [vb past] be used for | 5 |
|
