| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [prep] | 17588 |
|
| 2 | had been [vb pp] [prep] | 15645 |
|
| 3 | [verb] been used [prep] | 854 |
|
| 4 | have been used [prep] | 854 |
|
| 5 | had been use [prep] | 158 |
|
| 6 | [vb past] been used [prep] | 154 |
|
| 7 | had been used [prep] | 150 |
|
| 8 | had [be] used [prep] | 150 |
|
| 9 | had [been] used [prep] | 150 |
|
| 10 | had be used [prep] | 150 |
|
