| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [noun] at | 4044 |
|
| 2 | [prep] [noun] at a | 1247 |
|
| 3 | [prep] [pron] [noun] a | 1078 |
|
| 4 | [pron] [noun] at a | 483 |
|
| 5 | [prep] [pron] at a | 152 |
|
