| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] [pron] at [art] | 17 |
|
| 2 | [modal v] [be] [v-ing] [pron] at [art] | 10 |
|
| 3 | [modal v] [be] [vb pp] [pron] at [art] | 7 |
|
| 4 | [modal v] [be] [pron] at [art] [noun] | 5 |
|
