| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is common practice for | 6 |
|
| 2 | it is common practice for | 6 |
|
| 3 | it is common [noun] for | 6 |
|
| 4 | it is common [noun] for | 6 |
|
| 5 | it is common [noun sg] for | 6 |
|
