| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be concern that | 41 |
|
| 2 | [is] concern that | 18 |
|
| 3 | [was/were] concern that | 13 |
|
| 4 | was concern that | 13 |
|
| 5 | is concern that | 13 |
|
| 6 | be concern that | 5 |
|
| 7 | [been] concern that | 5 |
|
| 8 | [be] concern that | 5 |
|
| 9 | 's concern that | 5 |
|
| 10 | been concern that | 5 |
|
