| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] to ensure that [adj] | 14 |
|
| 2 | is [verb] to ensure [that] [adj] | 14 |
|
| 3 | is [verb] to ensure that [adj] | 14 |
|
| 4 | is [vb pp] to ensure [conj] [adj] | 11 |
|
| 5 | is [verb] to ensure [conj] [det] | 10 |
|
