| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at an [noun sg] | 368 |
|
| 2 | [verb] an appropriate [noun sg] | 284 |
|
| 3 | at an appropriate [noun sg] | 53 |
|
| 4 | [verb] at an appropriate | 16 |
|
