| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we have been [adj] | 447 |
|
| 2 | [pron] have been concerned | 76 |
|
| 3 | we [verb] been concerned | 22 |
|
| 4 | we have [been] concerned | 22 |
|
| 5 | we have [be] concerned | 22 |
|
| 6 | we have be concerned | 22 |
|
