| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be the first [noun] [prep] | 121 |
|
| 2 | must be the [adj] [noun] [prep] | 95 |
|
| 3 | must be the [num ord] [noun] [prep] | 10 |
|
| 4 | must be [art] first [noun] [prep] | 6 |
|
| 5 | must be the first [noun] [prep] | 6 |
|
| 6 | must [be] the first [noun] [prep] | 6 |
|
| 7 | must be [art] first [noun] [prep] | 6 |
|
| 8 | must be the first [noun] [prep] | 6 |
|
| 9 | must [be] the first [noun] [prep] | 6 |
|
| 10 | must be the first [noun] [prep] | 6 |
|
| 11 | must be the first [noun] [prep] | 6 |
|
