| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [verb] [adv prt] | 137 |
|
| 2 | has been [verb] [adv prt] for | 130 |
|
| 3 | it has been [verb] for | 113 |
|
| 4 | it has [verb] [adv prt] for | 9 |
|
| 5 | it has been [adv prt] for | 7 |
|
