| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have been used for many | 8 |
|
| 2 | [pers pn] have been used for many | 5 |
|
| 3 | have been used for many [noun pl] | 13 |
|
| 4 | have been used for many [noun] | 13 |
|
| 5 | have been used for many years | 11 |
|
| 6 | have been used for many year | 11 |
|
