| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | open its door [prep] the first | 5 |
|
| 2 | [verb] its door [prep] the first | 5 |
|
| 3 | its door [prep] the first time | 5 |
|
| 4 | its door [prep] the first time | 5 |
|
| 5 | its door [prep] the first [noun] | 5 |
|
| 6 | its door [prep] the first [noun sg] | 5 |
|
