| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [be] [vb pp] at [noun sg] | 185 |
|
| 2 | is [prep] [be] [vb pp] at | 136 |
|
| 3 | is [prep] [be] [vb pp] [noun sg] | 24 |
|
