| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | concentrated on the | 242 |
|
| 2 | to concentrate on the | 228 |
|
| 3 | concentrating on the | 197 |
|
| 4 | concentrate on the | 143 |
|
| 5 | concentrate on the | 132 |
|
| 6 | concentrates on the | 121 |
|
| 7 | concentrated on the | 74 |
|
