| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] used for [num] [prep] [noun] | 5 |
|
| 2 | [been] used for [adj] [prep] years | 5 |
|
| 3 | been used for [adj] [prep] [noun] | 5 |
|
| 4 | [been] used for [adj] [prep] [noun] | 5 |
|
| 5 | [been] used for [adj] [prep] year | 5 |
|
| 6 | [been] used for [adj] of [noun] | 5 |
|
| 7 | [been] used for [adj] of [noun] | 5 |
|
| 8 | [been] used for [adj] [prep] [noun pl] | 5 |
|
