| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [vb pp] [verb] that [noun pl] | 13 |
|
| 2 | is [vb pp] [verb] [that] [noun pl] | 13 |
|
| 3 | [is] [vb pp] [to-vb] [that] [noun pl] | 13 |
|
| 4 | [is] [vb pp] ensure [that] [noun pl] | 10 |
|
| 5 | [is] [vb pp] to ensure [that] [noun pl] | 10 |
|
