| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] [pron] at a time | 8 |
|
| 2 | [verb] [prep] [pron] at a time | 8 |
|
| 3 | [verb] [prep] [pron] at a time | 8 |
|
| 4 | [verb] [prep] [indef pn] at a time | 6 |
|
| 5 | [verb] [prep] one at a time | 6 |
|
| 6 | [verb] [prep] one at a time | 6 |
|
| 7 | [vb pp] [prep] [pron] at a time | 5 |
|
