| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ensure that [art] [noun sg] | 1482 |
|
| 2 | [det] that [art] [noun sg] | 427 |
|
| 3 | [det] ensure that [art] | 30 |
|
| 4 | [det] ensure [art] [noun sg] | 10 |
|
| 5 | [det] ensure that [noun sg] | 9 |
|
