| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] for [det] years | 108 |
|
| 2 | [been] [vb pp] for [det] years | 77 |
|
| 3 | been [vb pp] for [det] years | 77 |
|
| 4 | [be] [vb pp] for many years | 73 |
|
| 5 | [be] [vb pp] for some years | 20 |
|
| 6 | be [vb pp] for [det] years | 16 |
|
| 7 | [be] [vb pp] for [det] years | 16 |
|
| 8 | [be] known for [det] years | 16 |
|
| 9 | [be] [vb pp] for several years | 15 |
|
| 10 | [be] used for [det] years | 14 |
|
| 11 | [was/were] [vb pp] for [det] years | 13 |
|
| 12 | was [vb pp] for [det] years | 12 |
|
