| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [conj] [pron] | 462 |
|
| 2 | what [is] [v-ing] [pron] | 126 |
|
| 3 | what [is] [v-ing] [conj] | 88 |
|
| 4 | what [is] [conj] [pron] | 22 |
|
