The sentence "It might be a good idea to..." is an indicative sentence expressing a suggestion or possibility. Specifically, it falls under the category of a declarative sentence.
The question you asked is pertinent to this WikiAnswers category.
It is an annoyance that so many kids want me to do their homework, and it has resulted in my avoidance of this category.
In most libraries, books are sorted on the shelves by their category.
This question is in the WikiAnswers category for example sentences.
Example sentence - The bird of prey is in the predatory category.
Category is used as a noun in sentences. I love to play the game "Category" with my friends at recess. I think I'll select another category.
intensifiers
there are at lot of category to choies from like sports,music,food,games,ect....
The sentence Why are your shoes wet is a question, an interrogative.
the meeting will soon be starting, and the speakers will be assigned a topic or a category on which to speak.
intensifiers