| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] could [be] achieve [prep] | 6 |
|
| 2 | [prep] [Wh det] could [be] achieve [prep] | 6 |
|
| 3 | [noun sg] [Wh det] could [be] achieve [prep] | 5 |
|
| 4 | [noun] [Wh det] could [be] achieve [prep] | 5 |
|
| 5 | [Wh det] could [adv] [be] achieve [prep] | 8 |
|
| 6 | [Wh det] could [adv] [be] achieve [prep] | 5 |
|
| 7 | [Wh det] could [be] achieve [prep] [art] | 6 |
|
| 8 | [Wh det] could [be] achieve [prep] [art] | 6 |
|
