| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] to ensure that [adj] [noun] | 9 |
|
| 2 | is [verb] ensure that [adj] [noun] | 9 |
|
| 3 | [is] [vb pp] ensure that [adj] [noun] | 7 |
|
| 4 | [is] [verb] ensure that [det] [noun] | 6 |
|
| 5 | [is] [verb] ensure that [adj] [noun pl] | 5 |
|
