| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adj] [conj] | 3515 |
|
| 2 | it is [adj] ensure [conj] | 56 |
|
| 3 | is [adv] [adj] ensure [conj] | 29 |
|
| 4 | it is [adv] [adj] ensure | 26 |
|
