| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a children [is] | 6 |
|
| 2 | [v-ing] [prep] a [noun pl] 's | 6 |
|
| 3 | [v-ing] [prep] a [noun pl] [is] | 6 |
|
