| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been in [noun sg] for [det] | 56 |
|
| 2 | been in [noun sg] for some | 25 |
|
| 3 | been in [noun sg] for many | 15 |
|
| 4 | been in use for [det] | 10 |
|
| 5 | been in [noun sg] for several | 9 |
|
| 6 | been in existence for [det] | 9 |
|
| 7 | been in operation for [det] | 7 |
|
