| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] | 70805 |
|
| 2 | [not/n't] [vb pp] [prep] | 14891 |
|
| 3 | is [not/n't] [vb pp] | 6108 |
|
| 4 | is [not/n't] [prep] | 3344 |
|
