| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [prep] a time | 27 |
|
| 2 | is [verb] [prep] a time | 27 |
|
| 3 | is [vb pp] [prep] a time | 22 |
|
| 4 | is [verb] at a time | 17 |
|
| 5 | is [verb] as a time | 6 |
|
