| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [that] it is [adv] [vb pp] | 228 |
|
| 2 | ensure [that] it is [adv] | 32 |
|
| 3 | ensure [that] it is [vb pp] | 30 |
|
| 4 | ensure it is [adv] [vb pp] | 6 |
|
