| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be sometimes possible [verb] a | 8 |
|
| 2 | [be] sometimes possible [verb] a | 8 |
|
| 3 | is sometimes possible [verb] a | 7 |
|
| 4 | [is] sometimes possible [verb] a | 7 |
|
