| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] [noun] [prep] [noun] | 411 |
|
| 2 | [be] [v-ing] [n mass] [prep] [noun] | 94 |
|
| 3 | [is] [verb] [n mass] [prep] [noun] | 80 |
|
| 4 | [is] [v-ing] [n mass] [prep] [noun] | 36 |
|
