| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] [modal v] be [v-ing] | 866 |
|
| 2 | [vb infin] [pron] [modal v] be [verb] | 285 |
|
| 3 | [vb infin] [pron] [modal v] [be] [v-ing] | 124 |
|
