| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [v-ing] [prep] [pron] | 652 |
|
| 2 | [vb mod] be [v-ing] [pron] [to-vb] | 61 |
|
| 3 | [vb mod] be [prep] [pron] [to-vb] | 60 |
|
| 4 | be [v-ing] [prep] [pron] [to-vb] | 21 |
|
