| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] | 18437 |
|
| 2 | it is [vb pp] | 14689 |
|
| 3 | it [be] recommended | 187 |
|
| 4 | it be recommended | 187 |
|
| 5 | [pron] is recommended | 160 |
|
| 6 | it [is] recommended | 159 |
|
| 7 | it is recommend | 159 |
|
