| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must [vb infin] the [adj] [noun] | 20 |
|
| 2 | it must [vb infin] the [adj] [noun] | 16 |
|
| 3 | it must [vb infin] the [adj] [noun sg] | 12 |
|
| 4 | it must [vb infin] the [adj] [noun pl] | 6 |
|
