| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] always possible [to-vb] a | 8 |
|
| 2 | not always possible [to-vb] a | 7 |
|
| 3 | not always possible [to-vb] a | 7 |
|
| 4 | [not/n't] always possible [to-vb] a | 7 |
|
