| Share | Phrase |
|---|
| 13.15% | frequent [time periodicity] change |
| 11.35% | frequent [time periodicity] maintenance |
| 8.10% | frequent [time periodicity] replacement |
| 6.06% | frequent [time periodicity] interval |
| 6.04% | frequent [time periodicity] repair |
| 5.95% | frequent [time periodicity] adjustment |
| 5.32% | frequent [time periodicity] use |
| 5.25% | frequent [time periodicity] operation |
| 4.94% | frequent [time periodicity] problem |
| 4.39% | frequent [time periodicity] occurrence |
| 3.84% | frequent [time periodicity] failure |
| 3.84% | frequent [time periodicity] repetition |
| 3.84% | frequent [time periodicity] stopping |
| 3.81% | frequent [time periodicity] cleaning |
| 3.29% | frequent [time periodicity] advancement |
| 2.02% | frequent [time periodicity] action |
| 2.02% | frequent [time periodicity] application |
| 1.97% | frequent [time periodicity] braking |
| 1.48% | less [degree] frequent |
| 1.37% | more [degree] frequent |
| 1.02% | less frequent |
| 0.83% | more frequent |