| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it may [be] [verb] | 1174 |
|
| 2 | it may [be] [vb pp] | 1101 |
|
| 3 | it [modal v] [be] observed | 52 |
|
| 4 | it [vb mod] [be] observed | 52 |
|
| 5 | [pron] may [be] observed | 17 |
|
| 6 | it may [be] observe | 16 |
|
| 7 | it may [be] observed | 16 |
|
| 8 | [pers pn] may [be] observed | 16 |
|
| 9 | it may [be] observed | 16 |
|
