| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] to ensure that | 82 |
|
| 2 | is [vb pp] ensure that | 72 |
|
| 3 | is need ensure that | 12 |
|
| 4 | is needed ensure that | 12 |
|
| 5 | is designed ensure that | 11 |
|
| 6 | is design ensure that | 11 |
|
| 7 | is intended ensure that | 9 |
|
| 8 | is intend ensure that | 9 |
|
| 9 | is [v-ing] ensure that | 8 |
|
| 10 | is take ensure that | 7 |
|
| 11 | is taken ensure that | 6 |
|
| 12 | is required ensure that | 6 |
|
| 13 | is require ensure that | 6 |
|
| 14 | is try ensure that | 6 |
|
| 15 | is check ensure that | 5 |
|
| 16 | is checked ensure that | 5 |
|
