| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the time [art] | 309 |
|
| 2 | at [art] time the | 266 |
|
| 3 | at [art] time a | 40 |
|
| 4 | at a time [art] | 6 |
|
| 5 | at [art] time an | 6 |
|
