| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [noun sg] | 278243 |
|
| 2 | at a [noun sg] | 14548 |
|
| 3 | [verb] at [noun sg] | 9386 |
|
| 4 | [verb] at a | 7173 |
|
