| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [vb -s] on the | 1787 |
|
| 2 | [noun sg] concentrate on the | 137 |
|
| 3 | [noun sg] [vb -s] concentrate on | 59 |
|
| 4 | [vb -s] concentrate on the | 41 |
|
