| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [prep] a | 21068 |
|
| 2 | [conj] [not/n't] [prep] | 4533 |
|
| 3 | [not/n't] [prep] a | 2142 |
|
| 4 | [conj] [not/n't] a | 1323 |
|
