| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [prep] [noun] | 4147 |
|
| 2 | [vb mod] be [v-ing] [prep] | 4042 |
|
| 3 | be [v-ing] [prep] [noun] | 1648 |
|
| 4 | [vb mod] be [v-ing] [noun] | 1244 |
|
