1
I was too excited when I heard the news.
I was very excited when I heard the news.
Use very if you simply mean that you felt excited. Too means ‘more than is good or wanted’: ‘I was too excited to sleep.’
2
I don’t like it too.
I don’t like it either.
To mean ‘also’ in a negative sentence, use either at the end: ‘I don’t like it either.’
3
David likes too this kind of furniture.
David likes this kind of furniture too.
David also likes this kind of furniture.
When too means ‘also’, it normally goes at the end of the sentence: ‘David likes it too.’
See ALSO
4
It was a too expensive trip and we couldn’t afford it.
The trip was too expensive, and we couldn’t afford it.
Put too before the adjective: ‘The trip was too expensive.’ Do not put it before a + adjective + noun.