| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] take to ensure that [adj] [noun pl] | 12 |
|
| 2 | be take ensure that [adj] [noun pl] | 12 |
|
| 3 | [be] taken ensure that [adj] [noun pl] | 12 |
|
| 4 | [be] take ensure that [adj] [noun pl] | 11 |
|
| 5 | be take ensure that [adj] [noun pl] | 11 |
|
| 6 | [be] take ensure that [adj] [noun pl] | 6 |
|
