| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at [art] time when | 72 |
|
| 2 | [be] [verb] [prep] a time when | 65 |
|
| 3 | [be] [verb] at a [noun] when | 61 |
|
| 4 | [be] [verb] at a [noun sg] when | 61 |
|
| 5 | [be] [verb] at a time [adv] | 59 |
|
| 6 | [be] [verb] at a time when | 58 |
|
