| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a tough time | 38 |
|
| 2 | have a tough time | 31 |
|
| 3 | [v-ing] a tough time | 13 |
|
| 4 | having a tough time | 11 |
|
| 5 | [vb past] a tough time | 8 |
|
| 6 | [vb infin] a tough time | 8 |
|
| 7 | have a tough time | 7 |
|
| 8 | had a tough time | 7 |
|
| 9 | [vb pp] a tough time | 6 |
|
| 10 | [prep] a tough time | 6 |
|
| 11 | [prep] a tough time | 6 |
|
| 12 | [pron] a tough time | 5 |
|
| 13 | for a tough time | 5 |
|
| 14 | had a tough time | 5 |
|
| 15 | for a tough time | 5 |
|
| 16 | [be] a tough time | 5 |
|
| 17 | be a tough time | 5 |
|
| 18 | a tough time [prep] | 17 |
|
| 19 | a tough time [prep] | 17 |
|
| 20 | a tough time [verb] | 14 |
|
| 21 | a tough time [v-ing] | 11 |
|
| 22 | a tough time in | 7 |
|
| 23 | a tough time in | 7 |
|
