| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be have a tough time | 11 |
|
| 2 | [be] have a tough time | 11 |
|
| 3 | [am/are] have a tough time | 6 |
|
| 4 | are have a tough time | 5 |
|
| 5 | [verb] have a tough time | 5 |
|
| 6 | [modal v] have a tough time | 5 |
|
| 7 | have have a tough time | 5 |
|
| 8 | [vb mod] have a tough time | 5 |
|
| 9 | have [verb] a tough time | 5 |
|
| 10 | have had a tough time | 5 |
|
| 11 | have have a tough time | 5 |
|
| 12 | have [vb pp] a tough time | 5 |
|
| 13 | have a tough time [verb] | 12 |
|
| 14 | have a tough time [v-ing] | 11 |
|
| 15 | have a tough time [prep] | 7 |
|
| 16 | have a tough time [prep] | 7 |
|
