| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | concentrate on [art] [adj] [noun] | 360 |
|
| 2 | [verb] on [art] few [noun] | 56 |
|
| 3 | concentrate [prep] [art] few [noun] | 15 |
|
| 4 | concentrate on [art] [det] [noun] | 8 |
|
| 5 | concentrate on [art] few [noun] | 6 |
|
