| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] ensure that [noun pl] | 15 |
|
| 2 | be [adj] to ensure [that] [noun pl] | 15 |
|
| 3 | be [adj] ensure [that] [noun pl] | 14 |
|
| 4 | is [adj] ensure [that] [noun pl] | 5 |
|
