| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] that [art] [noun] | 1460 |
|
| 2 | [be] to ensure that [art] [noun] | 99 |
|
| 3 | be to ensure that [art] [noun] | 99 |
|
| 4 | was [to-vb] that [art] [noun] | 55 |
|
| 5 | was ensure that [art] [noun] | 21 |
|
| 6 | [was/were] to ensure that [art] [noun] | 20 |
|
| 7 | was to ensure [conj] [art] [noun] | 20 |
|
