| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been used for [det] [noun pl] | 15 |
|
| 2 | been used for [det] years | 13 |
|
| 3 | been used for many [noun] | 13 |
|
| 4 | been used for [det] year | 13 |
|
| 5 | been used for [det] [noun sg] | 12 |
|
| 6 | been used for this [noun] | 6 |
|
| 7 | been used for [det] purpose | 6 |
|
| 8 | been used for [det] purpose | 5 |
|
