| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] an idea [conj] [modal v] [verb] | 5 |
|
| 2 | [prep] an idea [conj] [modal v] [verb] | 5 |
|
| 3 | an idea [conj] [pers pn] [modal v] [verb] | 8 |
|
| 4 | an idea [conj] [pron] [modal v] [verb] | 8 |
|
