| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun pl] must [be] | 398 |
|
| 2 | [noun sg] [noun pl] [be] able | 100 |
|
| 3 | [noun sg] must [be] able | 84 |
|
| 4 | [noun pl] must [be] able | 49 |
|
