| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [verb] | 12424 |
|
| 2 | is [prep] [verb] | 2653 |
|
| 3 | is [Wh det] [verb] | 637 |
|
| 4 | is [prep] [Wh det] | 132 |
|
