| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [noun sg] | 251620 |
|
| 2 | not a [adj] [noun sg] | 5148 |
|
| 3 | not [prep] a [noun sg] | 1201 |
|
| 4 | not [prep] [adj] [noun sg] | 648 |
|
| 5 | not [prep] a [adj] | 640 |
|
