| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been estimate [prep] | 50 |
|
| 2 | have be estimated [prep] | 49 |
|
| 3 | has be estimate [prep] | 34 |
|
| 4 | have be estimate at | 29 |
|
| 5 | have be estimate [prep] | 9 |
|
| 6 | have be estimate by | 7 |
|
| 7 | had be estimate [prep] | 7 |
|
| 8 | have be estimate to | 5 |
|
