| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [verb] on [art] | 492 |
|
| 2 | has [vb pp] on [art] | 456 |
|
| 3 | [verb] concentrated on [art] | 82 |
|
| 4 | have concentrated on [art] | 81 |
|
| 5 | has concentrated [prep] [art] | 40 |
|
| 6 | has concentrate on [art] | 37 |
|
| 7 | [vb -s] concentrated on [art] | 36 |
|
| 8 | has concentrated on [art] | 36 |
|
