| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been an [adj] factor | 15 |
|
| 2 | have be an [adj] factor | 15 |
|
| 3 | have be an important factor | 10 |
|
| 4 | had be an [adj] factor | 5 |
|
| 5 | has be an [adj] factor | 5 |
|
