| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [prep] | 143133 |
|
| 2 | [verb] [prep] an | 33491 |
|
| 3 | [be] [verb] an | 534 |
|
| 4 | [be] [prep] an | 281 |
|
