| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have taken [noun] [verb] | 128 |
|
| 2 | have taken [noun] [to-vb] | 101 |
|
| 3 | have [verb] [noun] to ensure | 11 |
|
| 4 | have [vb pp] [noun] to ensure | 10 |
|
| 5 | [verb] taken [noun] to ensure | 5 |
|
| 6 | have take [noun] to ensure | 5 |
|
| 7 | have taken [noun] ensure | 5 |
|
