| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [v-ing] at the time of | 18 |
|
| 2 | [noun sg] [v-ing] at the time of | 9 |
|
| 3 | [noun pl] [v-ing] at the time of | 8 |
|
| 4 | [noun] existing at the time of | 5 |
|
