| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have a [adj] understanding | 23 |
|
| 2 | to have a good understanding | 7 |
|
| 3 | to have a clear understanding | 6 |
|
| 4 | to have a good understanding | 5 |
|
| 5 | to have a [adj -er] understanding | 5 |
|
| 6 | to have a clear understanding | 5 |
|
