| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 've be able do | 5 |
|
| 2 | 've [be] able to do | 5 |
|
| 3 | 've [been] able do | 5 |
|
| 4 | 've [be] able do | 5 |
|
| 5 | 've been able do | 5 |
|
