| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] be concentrate on the | 25 |
|
| 2 | [noun sg] [be] concentrated on the | 18 |
|
| 3 | [noun sg] is concentrate on the | 12 |
|
| 4 | [noun sg] [is] concentrate on the | 12 |
|
| 5 | [noun sg] [was/were] concentrate on the | 11 |
|
| 6 | [noun sg] was concentrate on the | 10 |
|
| 7 | [noun sg] [be] to concentrate on the | 7 |
|
