| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv prt] at the time | 17 |
|
| 2 | [be] [v-ing] [adv prt] at the time | 17 |
|
| 3 | [be] [v-ing] [adv prt] at the time | 17 |
|
| 4 | [was/were] [v-ing] [adv prt] at the time | 13 |
|
| 5 | was [v-ing] [adv prt] at the time | 12 |
|
| 6 | [be] going [adv prt] at the time | 8 |
|
| 7 | [be] [v-ing] on at the time | 8 |
|
