| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been use for [det] [noun pl] | 15 |
|
| 2 | [been] used for [det] [noun pl] | 15 |
|
| 3 | [been] use for many [noun pl] | 13 |
|
| 4 | [been] use for [det] years | 13 |
|
