| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adj] for | 3918 |
|
| 2 | it be usual [prep] | 83 |
|
| 3 | [pron] be usual for | 70 |
|
| 4 | [pers pn] be usual for | 69 |
|
| 5 | it [be] usual for | 68 |
|
| 6 | it be usual for | 68 |
|
