| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been used for [adj] [noun] | 44 |
|
| 2 | have [been] used for [adj] [noun pl] | 33 |
|
| 3 | have [been] used for [adj] [noun] | 21 |
|
| 4 | have [been] used for [det] [noun] | 21 |
|
| 5 | have [been] used for many [noun] | 13 |
|
| 6 | have [been] used for many [noun] | 13 |
|
| 7 | has [been] used for [adj] [noun] | 13 |
|
| 8 | had [been] used for [adj] [noun] | 12 |
|
| 9 | have [been] used for [adj] year | 12 |
|
| 10 | have [been] used for [adj] years | 12 |
|
| 11 | have [been] used for [adj] [noun sg] | 11 |
|
| 12 | have [been] used for [adj] [noun] | 11 |
|
| 13 | have [been] used for [adj] purpose | 7 |
|
| 14 | have [been] used for this [noun] | 5 |
|
| 15 | have [been] used for this [noun] | 5 |
|
