| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | concerned with be | 25 |
|
| 2 | concerned with [is] | 12 |
|
| 3 | concerned with is | 12 |
|
| 4 | concerned with are | 7 |
|
| 5 | concerned with [am/are] | 7 |
|
| 6 | concerned with [was/were] | 6 |
|
| 7 | concerned with was | 6 |
|
