| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] at a time | 191 |
|
| 2 | one at a time | 190 |
|
| 3 | one at a time | 190 |
|
| 4 | [pers pn] at a time | 25 |
|
| 5 | they at a time | 9 |
|
| 6 | them at a time | 9 |
|
| 7 | it at a time | 7 |
|
| 8 | it at a time | 7 |
|
