| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] on [adv] | 960 |
|
| 2 | concentrate [prep] [adv] | 53 |
|
| 3 | concentrate [prep] [adv] | 53 |
|
| 4 | concentrate on [adv] | 50 |
|
| 5 | concentrate on [adv] | 23 |
|
