| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | easy [to-vb] [conj] [verb] | 154 |
|
| 2 | [to-vb] [conj] [modal v] [verb] | 135 |
|
| 3 | easy [to-vb] [conj] [modal v] | 13 |
|
