| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] at sea | 12 |
|
| 2 | have been [vb pp] at sea | 12 |
|
| 3 | had been [vb pp] at sea | 7 |
|
| 4 | have been lost at sea | 6 |
|
