| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] always possible [to-vb] | 39 |
|
| 2 | is not always possible [to-vb] | 35 |
|
| 3 | is not always possible [to-vb] | 35 |
|
| 4 | is [not/n't] always possible [to-vb] | 35 |
|
