| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | level of [noun sg] [verb] for | 16 |
|
| 2 | level [prep] [noun sg] [verb] for | 16 |
|
| 3 | level of [noun sg] [verb] for | 16 |
|
| 4 | level [prep] [noun sg] [verb] for | 16 |
|
| 5 | level [prep] [noun sg] [verb] for | 12 |
|
| 6 | level [prep] [noun sg] [vb pp] for | 10 |
|
| 7 | level [prep] [noun sg] required for | 7 |
|
| 8 | level [prep] [noun sg] require for | 7 |
|
