| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] time of [v-ing] to | 67 |
|
| 2 | at the time of [v-ing] to | 67 |
|
| 3 | at the time of [v-ing] to | 67 |
|
| 4 | at [art] time of going to | 64 |
|
