| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | seem to have been [vb pp] [prep] | 279 |
|
| 2 | to have been [vb pp] [prep] [det] | 88 |
|
| 3 | seem to have [vb pp] [prep] [det] | 37 |
|
| 4 | seem to have been [vb pp] [det] | 7 |
|
| 5 | seem to have been [prep] [det] | 6 |
|
