| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ago and [vb -s] be | 8 |
|
| 2 | ago and [vb -s] be | 8 |
|
| 3 | ago and [vb -s] been | 8 |
|
| 4 | ago and has be | 8 |
|
