| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] to be | 758 |
|
| 2 | been [vb pp] to [be] | 747 |
|
| 3 | been shown to [be] | 222 |
|
| 4 | been show to [be] | 222 |
|
| 5 | been find to [be] | 165 |
|
| 6 | been found to [be] | 165 |
|
| 7 | been held to [be] | 30 |
|
| 8 | been hold to [be] | 30 |
|
| 9 | been report to [be] | 26 |
|
| 10 | been reported to [be] | 26 |
|
| 11 | been considered to [be] | 21 |
|
| 12 | been consider to [be] | 21 |
|
| 13 | been prove to [be] | 20 |
|
| 14 | been design to [be] | 17 |
|
| 15 | been designed to [be] | 17 |
|
| 16 | been think to [be] | 16 |
|
| 17 | been thought to [be] | 16 |
|
| 18 | been proved to [be] | 15 |
|
| 19 | been expect to [be] | 14 |
|
| 20 | been expected to [be] | 13 |
|
| 21 | been say to [be] | 13 |
|
| 22 | been assume to [be] | 13 |
|
| 23 | been said to [be] | 13 |
|
| 24 | been assumed to [be] | 13 |
|
| 25 | been know to [be] | 12 |
|
| 26 | been known to [be] | 12 |
|
| 27 | been seen to [be] | 10 |
|
| 28 | been see to [be] | 10 |
|
| 29 | been [v-ing] to [be] | 10 |
|
| 30 | been estimated to [be] | 6 |
|
