| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used to [be] [adj] go | 9 |
|
| 2 | used [prep] [be] [adj] to go | 9 |
|
| 3 | used [prep] be [adj] go | 9 |
|
| 4 | used [prep] [be] able go | 7 |
|
