| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] have [noun] | 163 |
|
| 2 | they [modal v] have [noun sg] | 86 |
|
| 3 | [pron] [modal v] have difficulty | 40 |
|
| 4 | they [modal v] [vb infin] difficulty | 8 |
|
| 5 | they [modal v] [verb] difficulty | 8 |
|
| 6 | they [modal v] have difficulty | 7 |
|
| 7 | they [modal v] have difficulty | 7 |
|
