| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] than concentrate on | 17 |
|
| 2 | rather than concentrate on | 17 |
|
| 3 | rather than concentrate on | 17 |
|
| 4 | [adv] than concentrate on | 17 |
|
| 5 | than concentrate on [art] | 6 |
|
| 6 | than concentrate on [art] | 6 |
|
