| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [adv prt] for [det] years | 9 |
|
| 2 | [verb] [been] [adv prt] for [det] years | 9 |
|
| 3 | [vb -s] [been] [adv prt] for [det] years | 5 |
|
| 4 | has [been] [adv prt] for [det] years | 5 |
|
| 5 | [been] [verb] [adv prt] for [det] years | 8 |
|
| 6 | [been] [v-ing] [adv prt] for [det] years | 5 |
|
