| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] on [verb] [prep] the | 76 |
|
| 2 | concentrate on [verb] [prep] [art] | 15 |
|
| 3 | concentrate on [verb] [prep] [art] | 15 |
|
| 4 | concentrate on [verb] [prep] the | 14 |
|
| 5 | concentrate [prep] [verb] [prep] the | 14 |
|
