| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [noun sg] [prep] a [noun sg] | 21 |
|
| 2 | must take [noun sg] [prep] a [noun] | 5 |
|
| 3 | must [vb infin] [noun sg] to a [noun] | 5 |
|
| 4 | must [vb infin] [noun sg] of a [noun] | 5 |
|
