| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] [prep] [n mass] | 828 |
|
| 2 | [is] [to-vb] [prep] [noun] | 548 |
|
| 3 | [be] [to-vb] [prep] [n mass] | 38 |
|
