| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] a [noun sg] [prep] | 5263 |
|
| 2 | at a [noun sg] [prep] | 5112 |
|
| 3 | [adv prt] at a [noun sg] | 339 |
|
| 4 | [adv prt] at [noun sg] [prep] | 285 |
|
