| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] in [noun] [conj] | 2967 |
|
| 2 | be [v-ing] [prep] [noun] [conj] | 1613 |
|
| 3 | [be] [v-ing] in [noun] [conj] | 281 |
|
