Common Error

continually

This word is always used wrongly in Taiwan. Here are some examples:

We continually improve our new products. INCORRECT
We continually invest in new equipment. INCORRECT
I continually do my best. INCORRECT

In fact, this word is almost never used in English. Instead, you should use present continuous verb tense, which has the same meaning as 'continually':

We are improving our new products. CORRECT

We are investing in new equipment. CORRECT

I am doing my best. CORRECT

Or, you can use: 'continue to V', but this is also not very common:

We continue to improve our new products. CORRECT

We continue to invest in new equipment. CORRECT

I continue to do my best. CORRECT

'continually' is usually used when you want to express frustration or anger.

You continually make this mistake! CORRECT 

You continually wake me up when I am trying to sleep! CORRECT