| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [pron] must [be] able | 6 |
|
| 2 | and [pers pn] must [be] able | 6 |
|
| 3 | and [noun] must [be] able | 6 |
|
| 4 | and must [be] able [to-vb] | 6 |
|
| 5 | and must [be] able [verb] | 6 |
|
