| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been used [prep] [det] | 36 |
|
| 2 | have been used for [det] | 27 |
|
| 3 | have been used in [det] | 26 |
|
| 4 | have been used [prep] many | 22 |
|
| 5 | have been used [prep] [det] | 20 |
|
| 6 | have been used [prep] some | 15 |
|
| 7 | have been used by [det] | 13 |
|
| 8 | have been used [prep] this | 12 |
|
| 9 | had been used [prep] [det] | 12 |
|
| 10 | have been used [prep] [det] | 7 |
|
| 11 | have been used [prep] all | 7 |
|
