| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [verb] for [det] | 560 |
|
| 2 | [modal v] be [v-ing] [prep] [det] | 286 |
|
| 3 | [modal v] be [v-ing] for [adj] | 107 |
|
| 4 | [modal v] [be] [v-ing] for [det] | 47 |
|
