| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] what [pron] | 6913 |
|
| 2 | [is] [v-ing] [pron] | 5464 |
|
| 3 | [v-ing] what [pron] | 1764 |
|
| 4 | [is] [v-ing] what | 157 |
|
