| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [prep] a [noun] | 3561 |
|
| 2 | [prep] [pron] [prep] a [noun] | 3561 |
|
| 3 | [prep] [pron] at [art] [noun] | 1109 |
|
| 4 | [prep] [pron] at a [noun] | 97 |
|
| 5 | [prep] [pron] at a [noun] | 97 |
|
