| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been [adv] for | 15 |
|
| 2 | which have been [adv prt] for | 9 |
|
| 3 | which has been [adv] for | 9 |
|
| 4 | which have been around for | 8 |
|
| 5 | which have been around for | 8 |
|
| 6 | which have been [adv] for | 6 |
|
| 7 | which had been [adv] for | 5 |
|
