| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] on the [noun] | 42143 |
|
| 2 | [vb pp] on the [noun] | 15332 |
|
| 3 | concentrate on the [noun] | 728 |
|
| 4 | concentrated [prep] the [noun] | 345 |
|
| 5 | concentrated on [art] [noun] | 163 |
|
