| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [noun prp] at the time | 5 |
|
| 2 | be [v-ing] [noun prp] at the time | 5 |
|
| 3 | [v-ing] [prep] [noun prp] at the time | 20 |
|
| 4 | [v-ing] [prep] [noun prp] at the time | 20 |
|
| 5 | [v-ing] in [noun prp] at the time | 14 |
|
| 6 | [v-ing] in [noun prp] at the time | 14 |
|
