| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [that] [det] [noun pl] | 372 |
|
| 2 | to ensure [that] [det] [noun pl] | 159 |
|
| 3 | is to ensure [that] [noun pl] | 27 |
|
| 4 | is to ensure [that] [det] | 21 |
|
