| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's not always possible [to-vb] | 5 |
|
| 2 | 's not always possible [to-vb] | 5 |
|
| 3 | 's [adv] always possible [to-vb] | 5 |
|
| 4 | 's [not/n't] always possible [to-vb] | 5 |
|
