| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [adv] [prep] a [noun sg] | 2205 |
|
| 2 | [adv] [prep] a [noun sg] when | 120 |
|
| 3 | [v-ing] [prep] a [noun sg] when | 43 |
|
