| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] at a | 10580 |
|
| 2 | [noun] [adv prt] at | 1409 |
|
| 3 | [adv prt] at a | 762 |
|
| 4 | [noun] [adv prt] a | 530 |
|
