| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we used [prep] [be] [adj] [verb] | 7 |
|
| 2 | we used [prep] [be] [adj] [verb] | 7 |
|
| 3 | we used [prep] [be] able [verb] | 5 |
|
| 4 | we used [prep] [be] able [verb] | 5 |
|
