| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adj] [adj] | 12202 |
|
| 2 | [is] [adj] to ensure | 142 |
|
| 3 | [adj] to ensure [adj] | 59 |
|
| 4 | [is] to ensure [adj] | 13 |
|
