| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at a [adj] time | 346 |
|
| 2 | [adv prt] at a [adj] | 282 |
|
| 3 | [adv prt] a [adj] time | 44 |
|
| 4 | [adv prt] at a time | 33 |
|
| 5 | [adv prt] at [adj] time | 8 |
|
