| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [is] [v-ing] [conj] [pron] [verb] | 73 |
|
| 2 | [Wh det] [is] [verb] [conj] [pron] [verb] | 32 |
|
| 3 | [Wh det] [be] [v-ing] [conj] [pron] [verb] | 21 |
|
