| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] a | 13311 |
|
| 2 | [prep] a period | 2137 |
|
| 3 | [vb infin] a period | 43 |
|
| 4 | [vb infin] [prep] period | 6 |
|
