| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [pos pn] [noun sg] | 639 |
|
| 2 | it [vb infin] [pos pn] [noun sg] | 97 |
|
| 3 | it must [vb infin] [pos pn] | 40 |
|
| 4 | it must [vb infin] [noun sg] | 39 |
|
