| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] a [noun sg] [prep] | 411 |
|
| 2 | must [vb infin] a [noun sg] [prep] | 411 |
|
| 3 | [modal v] put a [noun sg] [prep] | 163 |
|
| 4 | must put [art] [noun sg] [prep] | 12 |
|
| 5 | must put [art] [noun sg] [prep] | 12 |
|
| 6 | must put a [noun sg] [prep] | 10 |
|
| 7 | must put a [noun] [prep] | 8 |
|
| 8 | must put a [noun sg] [prep] | 8 |
|
| 9 | must put a [noun sg] [prep] | 8 |
|
