| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] is | 2146 |
|
| 2 | [vb infin] [to-vb] [be] | 656 |
|
| 3 | [vb infin] [to-vb] be | 655 |
|
| 4 | [vb infin] [verb] is | 299 |
|
| 5 | [vb infin] [to-vb] [is] | 246 |
|
