| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb past] been [prep] school | 5 |
|
| 2 | i [vb past] [been] [prep] school | 5 |
|
| 3 | i [vb past] [been] [prep] school | 5 |
|
| 4 | i [vb past] [been] [prep] school | 5 |
|
