| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be a [noun] for us | 50 |
|
| 2 | be a [noun sg] for us | 50 |
|
| 3 | be a [noun] for us | 40 |
|
| 4 | is a [noun] for us | 20 |
|
| 5 | was a [noun] for us | 10 |
|
| 6 | be a [noun] for us | 10 |
|
| 7 | be an [noun] for us | 10 |
|
| 8 | 's a [noun] for us | 7 |
|
| 9 | be a problem for us | 6 |
|
| 10 | be a problem for us | 6 |
|
| 11 | be a opportunity for us | 5 |
|
| 12 | be a opportunity for us | 5 |
|
