| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] had a profound effect | 18 |
|
| 2 | have had a profound effect | 18 |
|
| 3 | has had a profound effect | 14 |
|
| 4 | [vb -s] had a profound effect | 14 |
|
| 5 | had a profound effect [prep] | 20 |
|
| 6 | had a profound effect [prep] | 20 |
|
| 7 | had a profound effect on | 19 |
|
| 8 | had a profound effect on | 19 |
|
