| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] f [verb] the first version | 5 |
|
| 2 | [prep] [letter] indicate the first version | 5 |
|
| 3 | as [letter] [verb] the first version | 5 |
|
| 4 | [prep] [letter] to indicate the first version | 5 |
|
| 5 | [prep] [letter] [to-vb] the first version | 5 |
|
