| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [v-ing] about the [adj] | 8 |
|
| 2 | [vb mod] [be] [v-ing] about the [adj] | 8 |
|
| 3 | [be] [v-ing] about the [adj] [noun] | 8 |
|
