| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] carefully to ensure [conj] | 5 |
|
| 2 | carefully [vb pp] to ensure [conj] | 5 |
|
| 3 | carefully [verb] to ensure [conj] | 5 |
|
| 4 | carefully to ensure [conj] [art] | 6 |
|
| 5 | carefully to ensure [conj] the | 6 |
|
| 6 | carefully to ensure [conj] the | 6 |
|
| 7 | carefully to ensure [conj] [art] | 6 |
|
