| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [noun] at a time of | 47 |
|
| 2 | [adj] [noun sg] at a time of | 31 |
|
| 3 | [adj] [noun pl] at a time of | 15 |
|
| 4 | [adj] at a time of [adj] | 9 |
|
| 5 | [adj] at a time of [adj] | 7 |
|
