| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] is [verb] [prep] | 232 |
|
| 2 | [verb] is [vb infin] [prep] | 185 |
|
| 3 | [to-vb] be [vb infin] [prep] | 98 |
|
| 4 | [to-vb] [be] [vb infin] [prep] | 98 |
|
| 5 | [to-vb] [is] [vb infin] [prep] | 84 |
|
| 6 | [to-vb] is [vb infin] [prep] | 84 |
|
