| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [is] [adj] [prep] | 1287 |
|
| 2 | [v-ing] [is] [adj] [prep] | 65 |
|
| 3 | [v-ing] what [is] [adj] | 56 |
|
| 4 | [v-ing] what [is] [prep] | 43 |
|
