| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] concentrate on | 384 |
|
| 2 | [modal v] concentrate on | 384 |
|
| 3 | [modal v] concentrate on | 379 |
|
| 4 | will concentrate on | 139 |
|
| 5 | will concentrate on | 131 |
|
| 6 | should concentrate on | 67 |
|
| 7 | should concentrate on | 67 |
|
| 8 | can concentrate on | 53 |
|
| 9 | can concentrate on | 53 |
|
| 10 | would concentrate on | 37 |
|
| 11 | would concentrate on | 36 |
|
| 12 | could concentrate on | 24 |
|
| 13 | could concentrate on | 24 |
|
| 14 | must concentrate on | 20 |
|
| 15 | must concentrate on | 20 |
|
| 16 | shall concentrate on | 19 |
|
| 17 | shall concentrate on | 19 |
|
| 18 | may concentrate on | 11 |
|
| 19 | may concentrate on | 11 |
|
| 20 | 'll concentrate on | 8 |
|
| 21 | let's concentrate on | 5 |
|
| 22 | let's concentrate on | 5 |
|
| 23 | [modal v] to concentrate on | 5 |
|
