| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [subord] it is [verb] [adv] | 9 |
|
| 2 | [vb infin] [subord] it is [vb pp] [adv] | 7 |
|
| 3 | [vb infin] [subord] it is [verb] [adv prt] | 5 |
|
