| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] at a time | 274 |
|
| 2 | [adj] [to-vb] at a | 93 |
|
| 3 | [to-vb] at a time | 18 |
|
| 4 | [adj] [to-vb] a time | 14 |
|
