| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not for a [noun sg] | 109 |
|
| 2 | [modal v] for a [noun sg] | 18 |
|
| 3 | [modal v] not a [noun sg] | 12 |
|
| 4 | [modal v] not for a | 9 |
|
