| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ensure that they have [adj] | 8 |
|
| 2 | ensure that they have [adj] | 8 |
|
| 3 | ensure that they have [adj] | 7 |
|
| 4 | ensure that they have [adj] | 5 |
|
| 5 | to ensure that they have [adj] | 5 |
|
