| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [adv prt] at the time | 24 |
|
| 2 | [v-ing] [adv prt] at the time | 24 |
|
| 3 | going [adv prt] at the time | 12 |
|
| 4 | [v-ing] on at the time | 11 |
|
