| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [noun prp] [modal v] [be] | 117 |
|
| 2 | [noun prp] [adv] [modal v] [be] | 63 |
|
| 3 | at [adv] [modal v] [be] | 27 |
|
| 4 | at [noun prp] [adv] [modal v] | 13 |
|
| 5 | at [noun prp] [adv] [be] | 13 |
|
