| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] be [pron] to do [prep] | 16 |
|
| 2 | it [vb mod] be [indef pn] to do [prep] | 16 |
|
| 3 | it [vb mod] be [pron] to do [prep] | 16 |
|
| 4 | it [vb mod] be something to do [prep] | 15 |
|
| 5 | it [vb mod] be something to do [prep] | 15 |
|
| 6 | it [vb mod] be [pron] to do with | 14 |
|
| 7 | it [vb mod] be [pron] to do with | 14 |
|
| 8 | it must be [pron] to do [prep] | 6 |
|
