| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] such a [noun sg] must | 12 |
|
| 2 | [prep] [adj] a [noun sg] must | 12 |
|
| 3 | [prep] [det] a [noun sg] must | 12 |
|
| 4 | [prep] such a [noun sg] must | 12 |
|
