| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] ensure that [adj] [noun pl] | 46 |
|
| 2 | [adj] ensure that [adj] [noun pl] | 35 |
|
| 3 | [adj] [prep] ensure that [adj] | 21 |
|
| 4 | [adj] [prep] ensure that [noun pl] | 8 |
|
