| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] upon [art] | 251 |
|
| 2 | concentrate [adv] [prep] [art] | 163 |
|
| 3 | concentrate [adv] [prep] [art] | 163 |
|
| 4 | concentrate [adv] upon [art] | 11 |
|
| 5 | concentrate [adv] upon [art] | 11 |
|
| 6 | concentrate [adv] upon [art] | 11 |
|
