| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [is] it that [det] [noun] | 14 |
|
| 2 | [Wh adv] [is] it that [det] [noun] | 14 |
|
| 3 | why [is] it that [det] [noun] | 12 |
|
| 4 | why [is] it that [det] [noun] | 12 |
|
| 5 | [is] it [adj] that [det] [noun] | 5 |
|
| 6 | [is] it [adj] that [det] [noun] | 5 |
|
| 7 | [is] it that [det] [noun] [verb] | 8 |
|
| 8 | [is] it that [det] [noun] [vb base] | 5 |
|
