| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [verb] for [adj] years | 144 |
|
| 2 | [vb -s] been [vb pp] for [adj] years | 84 |
|
| 3 | [vb -s] been used for [adj] [noun] | 15 |
|
| 4 | [verb] been used for [adj] years | 12 |
|
| 5 | [vb -s] been used for [adj] [noun pl] | 11 |
|
| 6 | [vb -s] been used [prep] [adj] years | 8 |
|
| 7 | [vb -s] [been] used for [adj] years | 7 |
|
| 8 | [vb -s] been used for [adj] year | 7 |
|
| 9 | [vb -s] [be] used for [adj] years | 7 |
|
| 10 | [vb -s] been use for [adj] years | 7 |
|
| 11 | [vb -s] be used for [adj] years | 7 |
|
