| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not always possible [to-vb] [adj] | 15 |
|
| 2 | [be] not always possible [to-vb] [adj] | 15 |
|
| 3 | [is] not always possible [to-vb] [adj] | 11 |
|
| 4 | is not always possible [to-vb] [adj] | 10 |
|
| 5 | not always possible [to-vb] [adj] [noun] | 10 |
|
| 6 | not always possible [to-vb] [adj] [noun pl] | 6 |
|
