| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [modal v] [verb] to [be] | 344 |
|
| 2 | [modal v] [verb] to [be] able | 116 |
|
| 3 | i [verb] to [be] able | 62 |
|
| 4 | i [modal v] to [be] able | 27 |
|
