| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [verb] [prep] a time | 8 |
|
| 2 | it [be] [verb] [prep] a time | 8 |
|
| 3 | it [be] [vb pp] [prep] a time | 7 |
|
| 4 | it [be] [verb] at a time | 5 |
|
