| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] force at [art] time | 23 |
|
| 2 | [prep] force at [art] time | 23 |
|
| 3 | [prep] force at the time | 22 |
|
| 4 | [prep] force at the time | 22 |
|
| 5 | in force at [art] time | 21 |
|
