| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [adv] be [verb] [conj] | 308 |
|
| 2 | [modal v] [adv] be observe [conj] | 19 |
|
| 3 | [vb mod] [adv] be observe [conj] | 19 |
|
| 4 | may [adv] [be] observe [conj] | 11 |
|
| 5 | may [adv] be observe [conj] | 11 |
|
