| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pers pn] [vb past] [be] able to | 5 |
|
| 2 | if [pers pn] [vb past] be able to | 5 |
|
| 3 | if [pers pn] [vb past] [been] able to | 5 |
|
| 4 | if [pers pn] [vb past] been able to | 5 |
|
| 5 | if [pers pn] had [be] able to | 5 |
|
| 6 | if [pers pn] [vb past] [be] able to | 5 |
|
