| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] time before they [modal v] | 6 |
|
| 2 | time before they [modal v] [be] | 6 |
|
| 3 | time before they [modal v] be | 6 |
|
| 4 | time before they [modal v] [be] | 6 |
|
| 5 | time before they [modal v] be | 6 |
|
