| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not have [verb] a [noun] | 162 |
|
| 2 | [modal v] not [verb] [to-vb] a [noun] | 151 |
|
| 3 | [modal v] [adv] have [to-vb] a [noun] | 67 |
|
| 4 | [modal v] not have [to-vb] [art] [noun] | 51 |
|
