| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [verb] on [noun sg] | 708 |
|
| 2 | have [to-vb] on [noun sg] | 121 |
|
| 3 | [verb] to concentrate on [noun sg] | 32 |
|
| 4 | have concentrate on [noun sg] | 29 |
|
| 5 | have to concentrate [prep] [noun sg] | 5 |
|
| 6 | have to concentrate on [noun] | 5 |
|
