| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must be [verb] [prep] [det] | 247 |
|
| 2 | [noun] must be [vb pp] [prep] [det] | 245 |
|
| 3 | [noun] [modal v] be used [prep] [det] | 130 |
|
| 4 | [noun] must be used [prep] [adj] | 14 |
|
| 5 | [noun] must [be] used [prep] [det] | 7 |
|
| 6 | [noun] must be use [prep] [det] | 7 |
|
| 7 | [noun] must be used [prep] [det] | 7 |
|
| 8 | [noun] must be used [prep] [det] | 7 |
|
| 9 | [noun] must [be] used [prep] [det] | 7 |
|
