| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [prep] a | 1837 |
|
| 2 | [not/n't] think [prep] | 1485 |
|
| 3 | think [prep] a | 1197 |
|
| 4 | [not/n't] think a | 51 |
|
