| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [v-ing] [prep] [art] good | 5 |
|
| 2 | [vb mod] be [v-ing] [prep] [art] good | 5 |
|
| 3 | be [v-ing] [prep] [art] good [noun] | 7 |
|
| 4 | be [v-ing] [prep] [art] good [noun sg] | 7 |
|
