| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] have been [adv] [det] | 51 |
|
| 2 | [ex0] have been a [det] | 22 |
|
| 3 | [ex0] have been [adv] a | 14 |
|
| 4 | have been [adv] a [det] | 10 |
|
