| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | you must [vb infin] a [noun] | 111 |
|
| 2 | you must [vb infin] a [noun] | 111 |
|
| 3 | you must [vb infin] a [noun sg] | 106 |
|
| 4 | you must have a [noun] | 38 |
|
| 5 | you must use a [noun] | 8 |
|
| 6 | you must find a [noun] | 5 |
|
| 7 | you must put a [noun] | 5 |
|
| 8 | you must get a [noun] | 5 |
|
