| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at a [noun] of | 209 |
|
| 2 | [v-ing] at [art] time of | 61 |
|
| 3 | [verb] at a time of | 52 |
|
| 4 | [v-ing] [prep] a time of | 9 |
|
| 5 | [v-ing] [prep] a time of | 9 |
|
| 6 | [v-ing] at a time of | 7 |
|
| 7 | [v-ing] at a time of | 7 |
|
| 8 | [v-ing] at a time [prep] | 7 |
|
| 9 | [v-ing] at a time [prep] | 7 |
|
