| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] [adj] | 11143 |
|
| 2 | what is [vb pp] [prep] | 1306 |
|
| 3 | what is [prep] [adj] | 66 |
|
| 4 | what is [vb pp] [adj] | 52 |
|
