| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must [verb] | 1992 |
|
| 2 | it must [vb infin] | 1990 |
|
| 3 | it [modal v] take | 1680 |
|
| 4 | it [vb mod] take | 1680 |
|
| 5 | [pron] must take | 352 |
|
| 6 | [pers pn] must take | 330 |
|
| 7 | it must take | 22 |
|
| 8 | it must take | 22 |
|
| 9 | it must take | 22 |
|
