| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [to-vb] that [adj] | 31 |
|
| 2 | is [vb pp] [to-vb] [that] [adj] | 23 |
|
| 3 | is [verb] [to-vb] [that] [det] | 21 |
|
| 4 | is [verb] to ensure [that] [adj] | 14 |
|
| 5 | is [verb] [to-vb] [that] [adj] | 9 |
|
| 6 | is [v-ing] [to-vb] [that] [adj] | 8 |
|
| 7 | is [verb] [to-vb] [that] all | 6 |
|
| 8 | is [verb] [to-vb] [that] all | 6 |
|
