| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [be] able | 477 |
|
| 2 | [modal v] [be] able to | 239 |
|
| 3 | they [be] able to | 19 |
|
| 4 | they [modal v] [be] to | 12 |
|
