| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [indef pn] at a time | 47 |
|
| 2 | [vb pp] [pron] at a time | 23 |
|
| 3 | [vb pp] [indef pn] [prep] a time | 22 |
|
| 4 | [vb pp] [indef pn] at a [noun sg] | 22 |
|
| 5 | [vb pp] [indef pn] at a [noun] | 22 |
|
| 6 | [vb pp] [indef pn] [prep] a time | 22 |
|
| 7 | [vb pp] [indef pn] at a time | 21 |
|
| 8 | [vb pp] [indef pn] at [art] time | 21 |
|
| 9 | [vb pp] [indef pn] at a time | 21 |
|
