| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] ensure that | 459 |
|
| 2 | be [verb] ensure that | 459 |
|
| 3 | was [verb] [verb] that | 324 |
|
| 4 | [was/were] [verb] ensure that | 62 |
|
| 5 | was [verb] ensure [conj] | 36 |
|
| 6 | was [verb] ensure that | 35 |
|
| 7 | was [verb] ensure [that] | 35 |
|
