| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] a time | 61 |
|
| 2 | be [prep] a time | 61 |
|
| 3 | was [prep] a time | 38 |
|
| 4 | be at a time | 29 |
|
| 5 | be at a time | 29 |
|
| 6 | be for a time | 19 |
|
| 7 | be for a time | 19 |
|
| 8 | is [prep] a time | 8 |
|
| 9 | be [prep] a time | 5 |
|
