| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [prep] [art] | 51414 |
|
| 2 | often [prep] [art] | 867 |
|
| 3 | often [vb -s] [prep] | 493 |
|
| 4 | often [vb -s] [art] | 357 |
|
