| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be to [be] able | 99 |
|
| 2 | [be] to be able | 99 |
|
| 3 | [is] to [be] able | 59 |
|
| 4 | is to [be] able | 59 |
|
| 5 | [am/are] to [be] able | 22 |
|
| 6 | are to [be] able | 21 |
|
| 7 | [was/were] to [be] able | 16 |
|
| 8 | was to [be] able | 15 |
|
