| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [vb -s] [vb pp] is [conj] | 24 |
|
| 2 | what [vb -s] [to-vb] is [conj] | 11 |
|
| 3 | [vb -s] [to-vb] [vb pp] is [conj] | 9 |
|
| 4 | what [vb -s] [to-vb] [vb pp] is | 7 |
|
