| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] in a few [noun pl] | 176 |
|
| 2 | concentrate [prep] a few [noun pl] | 12 |
|
| 3 | concentrate in [art] few [noun pl] | 8 |
|
| 4 | concentrate in a few [noun pl] | 8 |
|
| 5 | concentrate in a few [noun] | 8 |
|
| 6 | concentrate in [art] few [noun pl] | 8 |
|
| 7 | concentrate in a [adj] [noun pl] | 8 |
|
