| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to have a [adj] understanding of | 11 |
|
| 2 | [verb] to have a [adj] understanding of | 11 |
|
| 3 | [vb base] to have a [adj] understanding of | 5 |
|
| 4 | need to have a [adj] understanding of | 5 |
|
