| Share | Phrase |
|---|
| 10.53% | complicated [difficulty] structure |
| 9.43% | complicated [difficulty] become |
| 8.04% | complicated [difficulty] construction |
| 6.38% | complicated [difficulty] system |
| 5.97% | complicated [difficulty] mechanism |
| 4.41% | complicated [difficulty] design |
| 3.05% | complicated [difficulty] circuit |
| 3.05% | complicated [difficulty] configuration |
| 3.05% | complicated [difficulty] shape |
| 3.03% | complicated [difficulty] device |
| 2.94% | complicated [difficulty] arrangement |
| 2.60% | complicated [difficulty] process |
| 2.36% | complicated [difficulty] calculation |
| 2.27% | complicated [difficulty] operation |
| 2.14% | very complicated |
| 2.02% | complicated [difficulty] procedure |
| 1.84% | complicated [difficulty] control |
| 1.70% | complicated [difficulty] assembly |
| 1.66% | complicated [difficulty] linkage |
| 1.60% | complicated [difficulty] piping |
| 1.58% | complicated [difficulty] means |
| 1.50% | more complicated |
| 1.47% | complicated [difficulty] valve |
| 1.28% | complicated [difficulty] profile |
| 1.19% | complicated [difficulty] work |
| 1.12% | complicated [difficulty] frequency |
| 1.11% | complicated [difficulty] nature |
| 0.95% | complicated [difficulty] manner |
| 0.94% | relatively [degree] complicated |
| 0.89% | complicated in construction |
| 0.83% | unduly complicated |
| 0.83% | complicated [difficulty] logic |
| 0.79% | complicated [difficulty] method |
| 0.76% | complicated [difficulty] way |
| 0.71% | complicated [difficulty] installation |
| 0.71% | complicated [difficulty] manufacture |
| 0.69% | extremely complicated |
| 0.68% | complicated [difficulty] apparatus |
| 0.68% | complicated [difficulty] change |
| 0.66% | more [degree] complicated |
| 0.65% | complicated [difficulty] part |
| 0.60% | complicated to manufacture |
| 0.54% | relatively complicated |
| 0.34% | less complicated |
| 0.23% | less [degree] complicated |