| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been used [prep] [noun sg] | 9 |
|
| 2 | it [verb] been used [prep] [noun sg] | 9 |
|
| 3 | it [vb -s] been used [prep] [noun sg] | 8 |
|
| 4 | it has been used [prep] [noun sg] | 6 |
|
