| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | these [noun pl] [modal v] be [adj] | 270 |
|
| 2 | these [noun pl] [modal v] be [adj] | 251 |
|
| 3 | [adj] [noun pl] [modal v] be difficult | 37 |
|
| 4 | these [noun] [modal v] be difficult | 10 |
|
| 5 | these [noun pl] [modal v] [be] difficult | 9 |
|
| 6 | these [noun pl] [modal v] be difficult | 9 |
|
| 7 | these [noun pl] [modal v] be difficult | 9 |
|
| 8 | these [noun pl] [modal v] [be] difficult | 9 |
|
