| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be difficult | 1036 |
|
| 2 | would be difficult | 333 |
|
| 3 | would be difficult | 332 |
|
| 4 | may be difficult | 228 |
|
| 5 | may be difficult | 228 |
|
| 6 | can be difficult | 203 |
|
| 7 | can be difficult | 203 |
|
| 8 | will be difficult | 186 |
|
| 9 | will be difficult | 180 |
|
| 10 | might be difficult | 42 |
|
| 11 | might be difficult | 42 |
|
| 12 | could be difficult | 23 |
|
| 13 | could be difficult | 23 |
|
| 14 | must be difficult | 18 |
|
| 15 | must be difficult | 18 |
|
| 16 | 'll be difficult | 6 |
|
