| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be concerned at the | 45 |
|
| 2 | [be] concerned at the | 45 |
|
| 3 | [adv] concerned at the | 37 |
|
| 4 | [adv] concerned at the | 36 |
|
| 5 | [was/were] concerned at the | 18 |
|
| 6 | [am/are] concerned at the | 13 |
|
| 7 | were concerned at the | 10 |
|
| 8 | are concerned at the | 8 |
|
| 9 | [is] concerned at the | 8 |
|
| 10 | was concerned at the | 8 |
|
| 11 | is concerned at the | 6 |
|
| 12 | [be] concerned at the | 5 |
|
| 13 | [noun] concerned at the | 5 |
|
| 14 | be concerned at the | 5 |
|
| 15 | concerned at the [noun] | 76 |
|
| 16 | concerned at the [noun sg] | 72 |
|
| 17 | concerned at the [adj] | 23 |
|
| 18 | concerned at the [adj] | 23 |
|
| 19 | concerned at the lack | 5 |
|
| 20 | concerned at the lack | 5 |
|
