| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [conj] [adj] | 2184 |
|
| 2 | [verb] to ensure [conj] [adj] | 226 |
|
| 3 | is [verb] to ensure [conj] | 82 |
|
| 4 | is to ensure [conj] [adj] | 38 |
|
| 5 | is [verb] to ensure [adj] | 17 |
|
