| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [verb] we [verb] | 441 |
|
| 2 | how [verb] we [vb infin] | 426 |
|
| 3 | how [verb] [pron] ensure | 12 |
|
| 4 | [adv] [verb] we ensure | 6 |
|
| 5 | how [verb] we ensure | 5 |
|
| 6 | how [verb] we ensure | 5 |
|
| 7 | [Wh adv] [verb] we ensure | 5 |
|
