| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] a [noun] [prep] | 417 |
|
| 2 | must [vb infin] a [noun sg] [prep] | 411 |
|
| 3 | [modal v] [vb infin] a minimum [prep] | 31 |
|
| 4 | must [vb infin] [art] minimum [prep] | 14 |
|
| 5 | must [vb infin] [art] minimum [prep] | 14 |
|
| 6 | must [vb infin] a minimum [prep] | 13 |
|
| 7 | must [vb infin] a minimum [prep] | 13 |
|
| 8 | must [vb infin] a minimum [prep] | 13 |
|
| 9 | must [verb] a minimum [prep] | 13 |
|
