| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [verb] | 3607 |
|
| 2 | it has been [vb pp] | 3465 |
|
| 3 | it has been suggest | 473 |
|
| 4 | it has been suggested | 471 |
|
| 5 | it has been argue | 217 |
|
| 6 | it has been argued | 217 |
|
| 7 | it has been shown | 197 |
|
| 8 | it has been show | 197 |
|
| 9 | it has been said | 134 |
|
| 10 | it has been say | 134 |
|
| 11 | it has been [v-ing] | 132 |
|
| 12 | it has been estimate | 132 |
|
| 13 | it has been estimated | 132 |
|
| 14 | it has been find | 98 |
|
| 15 | it has been hold | 98 |
|
| 16 | it has been found | 98 |
|
| 17 | it has been held | 95 |
|
| 18 | it has been claim | 73 |
|
| 19 | it has been claimed | 73 |
|
| 20 | it has been use | 72 |
|
| 21 | it has been used | 71 |
|
| 22 | it has been known | 60 |
|
| 23 | it has been know | 60 |
|
| 24 | it has been decide | 48 |
|
| 25 | it has been decided | 48 |
|
| 26 | it has been point | 43 |
|
| 27 | it has been pointed | 43 |
|
| 28 | it has been reported | 39 |
|
| 29 | it has been report | 39 |
|
| 30 | it has been propose | 38 |
|
