| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they 've be [prep] a | 12 |
|
| 2 | they 've been [prep] a | 12 |
|
| 3 | they 've be [prep] a | 12 |
|
| 4 | they 've be in a | 5 |
|
