| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be seen [prep] [det] [noun pl] | 97 |
|
| 2 | could be seen [prep] [det] | 14 |
|
| 3 | could be seen [prep] [noun pl] | 12 |
|
| 4 | could be [prep] [det] [noun pl] | 5 |
|
