Continual and continuous are not interchangeable.
Continual means frequently repeated or recurring. It is generally used for things that happen repeatedly, often irritatingly.
- Tired of continual interruptions, he switched off his mobile.
- Her math teacher's continual remarks has impacted her learning process.
- The minister received continual complaints from the public for the government's handling of the street protests.
- A successful project is followed by continual review and embracing change.
- I can't work with these continual interruptions.
- The power backup provides enough power for unto six hours of continuous use.
- It was at Frogmore that the world's first machine for making continuous roll of paper was built.
- The continuous noise from the factory nearby kept him awake all night.
- Additional leave without pay may be requested up to a continuous period of forty eight weeks.
- There has been continuous fighting on the border for last 24 hours.
