| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] on | 12720 |
|
| 2 | [adv] [vb past] on | 1316 |
|
| 3 | [adv] concentrate on | 346 |
|
| 4 | [adv] concentrated [prep] | 23 |
|
| 5 | [adv] concentrated on | 22 |
|
