| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in force at the time | 21 |
|
| 2 | in existence at the time | 11 |
|
| 3 | in place at the time | 6 |
|
| 4 | in use at the time | 6 |
|
| 5 | in practice at the time | 5 |
|
