| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been to ensure | 8 |
|
| 2 | [noun sg] have been to ensure | 7 |
|
| 3 | have been [verb] to ensure | 40 |
|
| 4 | have been [vb pp] to ensure | 38 |
|
| 5 | have been take to ensure | 12 |
|
| 6 | have been taken to ensure | 12 |
|
| 7 | have been [adj] to ensure | 8 |
|
| 8 | have been make to ensure | 6 |
|
| 9 | have been made to ensure | 6 |
|
| 10 | have been [adj] to ensure | 5 |
|
| 11 | have been to ensure [that] | 8 |
|
| 12 | have been to ensure that | 8 |
|
| 13 | have been to ensure that | 8 |
|
| 14 | have been to ensure [conj] | 8 |
|
