| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been used [prep] | 217 |
|
| 2 | have been use in | 77 |
|
| 3 | have been use for | 54 |
|
| 4 | have been use as | 32 |
|
| 5 | have been use by | 20 |
|
| 6 | have been use on | 11 |
|
| 7 | have been use with | 6 |
|
| 8 | have been use to | 5 |
|
