| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is to ensure that [adj] | 38 |
|
| 2 | [is] to ensure that [det] | 21 |
|
| 3 | [is] to ensure that [adj] | 16 |
|
| 4 | [is] to ensure that all | 8 |
|
| 5 | [is] to ensure that all | 8 |
|
