| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] it [modal v] [vb infin] | 288 |
|
| 2 | at [Wh det] [pron] [modal v] [vb infin] | 119 |
|
| 3 | at [pron] it [modal v] [vb infin] | 16 |
|
| 4 | at [Wh det] it [modal v] [verb] | 16 |
|
