| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [noun] [verb] [to-vb] is | 20 |
|
| 2 | what [noun] [verb] [to-vb] [is] | 15 |
|
| 3 | [Wh det] [noun] [vb -s] [to-vb] [is] | 11 |
|
| 4 | [Wh det] [noun prp] [verb] [to-vb] [is] | 10 |
|
| 5 | [Wh det] [noun] [vb base] [to-vb] [is] | 7 |
|
| 6 | [Wh det] [noun] have [to-vb] [is] | 6 |
|
| 7 | which [noun] [verb] [to-vb] [is] | 5 |
|
| 8 | [Wh det] [noun] [verb] to do [is] | 5 |
|
