Take care of
Take care of means ‘look after’.
- Who takes care of sick people?
- If I give you a rabbit, will you be able to take care of it properly?
When used without a preposition, take care means ‘careful’.
- Take care when you are crossing the road.
Care about
When you care about something, you feel it is important or it interests or worries you.
- I don’t care about your opinion. (= I don’t think that your opinion is important.)
If there is no object, we do not use about.
- ‘I don’t want to meet you again.’ ‘I don’t care.’ (NOT I don’t care about.)
About is also left out before a conjunction.
- I don’t care whether you like it or not. (NOT I don’t care about whether you like it or not.)
Couldn’t care less means ‘don’t care at all’.
- ‘She is very upset with you.’ ‘I couldn’t care less.’ (= I don’t care at all.)
Care for
In a formal or literary style, care for can be used to mean ‘look after’.
- He spent years caring for his sick mother.
Care for can also mean ‘like’.
- He really cares for his siblings. (= He is really fond of his siblings.)
- I don’t much care for fish. (= I don’t like fish.)