| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [is] [adj] [to-vb] [noun] | 75 |
|
| 2 | [conj] [is] it [adj] [to-vb] | 56 |
|
| 3 | [is] it [adj] [to-vb] [noun] | 52 |
|
| 4 | [conj] [is] it [adj] [noun] | 32 |
|
