| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] for [det] year | 109 |
|
| 2 | have been [vb pp] for [det] year | 73 |
|
| 3 | have been used for [det] [noun] | 21 |
|
| 4 | [verb] been used for [det] year | 12 |
|
| 5 | have [be] used for [det] year | 12 |
|
| 6 | have been use for [det] year | 12 |
|
| 7 | have [been] used for [det] year | 12 |
|
| 8 | have be used for [det] year | 12 |
|
| 9 | have been used for [adj] year | 12 |
|
| 10 | have been used [prep] [det] year | 12 |
|
| 11 | have been used [prep] [det] year | 12 |
|
| 12 | have been used for [det] year | 12 |
|
