| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what has been [vb pp] [prep] | 189 |
|
| 2 | what has been [verb] in | 52 |
|
| 3 | what has been [verb] as | 38 |
|
| 4 | what has been [v-ing] [prep] | 31 |
|
| 5 | what has been describe [prep] | 29 |
|
| 6 | what has been happen [prep] | 28 |
|
| 7 | what has been described [prep] | 28 |
|
| 8 | what has been happening [prep] | 28 |
|
| 9 | what has been said [prep] | 26 |
|
| 10 | what has been say [prep] | 26 |
|
| 11 | what has been [verb] to | 26 |
|
| 12 | what has been [verb] by | 23 |
|
| 13 | what has been achieved [prep] | 20 |
|
| 14 | what has been achieve [prep] | 20 |
|
| 15 | what has been do [prep] | 19 |
|
| 16 | what has been done [prep] | 19 |
|
| 17 | what has been [verb] on | 12 |
|
| 18 | what has been [verb] for | 12 |
|
| 19 | what has been [verb] about | 12 |
|
| 20 | what has been written [prep] | 10 |
|
| 21 | what has been write [prep] | 10 |
|
| 22 | what has been learn [prep] | 8 |
|
| 23 | what has been [verb] from | 6 |
|
| 24 | what has been learned [prep] | 5 |
|
| 25 | what has been [verb] at | 5 |
|
