| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] is [v-ing] [adv] | 790 |
|
| 2 | what is [v-ing] [adv] | 461 |
|
| 3 | [pers pn] what is [v-ing] | 17 |
|
| 4 | [pers pn] what is [adv] | 8 |
|
