| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] a [noun] for [noun] | 1258 |
|
| 2 | [be] a [noun sg] for [noun] | 1252 |
|
| 3 | [be] a problem [prep] [noun] | 93 |
|
| 4 | [be] [art] problem for [noun] | 33 |
|
| 5 | [be] [art] problem for [noun] | 33 |
|
| 6 | [be] a problem for [noun] | 29 |
|
| 7 | [be] a problem for [noun] | 29 |
|
