| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have been [adj] | 558 |
|
| 2 | they have been [adj] | 506 |
|
| 3 | [pron] have been concerned | 76 |
|
| 4 | [pers pn] have been concerned | 62 |
|
| 5 | they have be concerned | 5 |
|
| 6 | they have [be] concerned | 5 |
|
| 7 | they [verb] been concerned | 5 |
|
| 8 | they have been concerned | 5 |
|
| 9 | they have [been] concerned | 5 |
|
| 10 | they have been concerned | 5 |
|
