| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the time of [v-ing] | 278 |
|
| 2 | at [art] time of writing | 109 |
|
| 3 | at [art] time of going | 66 |
|
| 4 | at [art] time of making | 23 |
|
| 5 | at a time of [v-ing] | 14 |
|
| 6 | at [art] time of speaking | 9 |
|
| 7 | at [art] time of rising | 6 |
|
| 8 | at [art] time of entering | 5 |
|
| 9 | at [art] time of taking | 5 |
|
| 10 | at [art] time of booking | 5 |
|
