| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | books have been [verb] [prep] | 31 |
|
| 2 | books have be [vb pp] [prep] | 30 |
|
| 3 | books have be write [prep] | 14 |
|
| 4 | books have be written [prep] | 14 |
|
| 5 | books have be [verb] on | 8 |
|
| 6 | books have be [verb] about | 6 |
|
| 7 | books have be [verb] by | 6 |
|
