| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] used for [adj] of year | 5 |
|
| 2 | been used for [adj] of [noun] | 5 |
|
| 3 | [been] used for [adj] of [noun pl] | 5 |
|
| 4 | [been] used for [adj] of [noun] | 5 |
|
| 5 | [been] used for [adj] of years | 5 |
|
| 6 | [been] used for [num] of [noun] | 5 |
|
