| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [modal v] be [verb] to | 1994 |
|
| 2 | [noun pl] [modal v] be [v-ing] [prep] | 349 |
|
| 3 | [noun] [modal v] be [v-ing] to | 168 |
|
| 4 | [noun pl] [modal v] [be] [v-ing] to | 33 |
|
