| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be seen to be [adv] | 18 |
|
| 2 | [vb mod] [be] seen to be [adv] | 18 |
|
| 3 | can [be] seen to be [adv] | 7 |
|
| 4 | must [be] seen to be [adv] | 5 |
|
