| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | concentrate on [noun pl] of | 32 |
|
| 2 | concentrated on [noun pl] [prep] | 22 |
|
| 3 | to concentrate on [noun pl] [prep] | 17 |
|
| 4 | concentrate on [noun pl] in | 15 |
|
| 5 | concentrate on [noun pl] for | 11 |
|
| 6 | concentrates on [noun pl] [prep] | 11 |
|
| 7 | concentrate on [noun pl] [prep] | 11 |
|
| 8 | concentrating on [noun pl] [prep] | 11 |
|
| 9 | concentrate on [noun pl] [prep] | 7 |
|
| 10 | concentrate on changes [prep] | 5 |
|
