| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there have been [det] [verb] | 13 |
|
| 2 | [ex0] has been [det] [verb] | 7 |
|
| 3 | [ex0] have been some [verb] | 7 |
|
| 4 | [ex0] have been [det] [vb base] | 6 |
|
| 5 | [ex0] have been [det] [v-ing] | 5 |
|
