| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] in a few [noun] | 187 |
|
| 2 | concentrate in a [adj] [noun] | 29 |
|
| 3 | concentrate [prep] a few [noun] | 14 |
|
| 4 | concentrate in [art] few [noun] | 8 |
|
| 5 | concentrate in [art] few [noun] | 8 |
|
| 6 | concentrate in a few [noun] | 8 |
|
