| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] at [noun sg] | 1537 |
|
| 2 | [adv prt] an [noun sg] | 1383 |
|
| 3 | at an [noun sg] | 1270 |
|
| 4 | [adv prt] at an | 97 |
|
