| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [adv] [is] [adv] | 180 |
|
| 2 | [adv] what [is] [adv] | 130 |
|
| 3 | [v-ing] what [is] [adv] | 48 |
|
| 4 | [v-ing] [adv] what [is] | 44 |
|
