| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [is] [adv] [verb] | 692 |
|
| 2 | [subord] [is] [adv] [verb] | 322 |
|
| 3 | [subord] what [is] [verb] | 71 |
|
| 4 | [subord] what [is] [adv] | 31 |
|
| 5 | [subord] what [adv] [verb] | 14 |
|
