| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [to-vb] that [det] [noun sg] | 20 |
|
| 2 | is [to-vb] [that] [det] [noun sg] | 19 |
|
| 3 | [is] to ensure [that] [det] [noun sg] | 8 |
|
| 4 | [is] [to-vb] [that] this [noun sg] | 7 |
|
| 5 | [is] [to-vb] [that] each [noun sg] | 5 |
|
