| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [modal v] [be] [verb] | 4582 |
|
| 2 | [modal v] [be] [verb] at | 4041 |
|
| 3 | [noun prp] [modal v] [verb] at | 176 |
|
| 4 | [noun prp] [modal v] [be] at | 78 |
|
