| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [been] a | 3898 |
|
| 2 | [vb -s] [been] offer | 106 |
|
| 3 | [been] offer a | 92 |
|
| 4 | [vb -s] offer a | 80 |
|
