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Hello.

In these sentences should I use the preposition at the end?

A place we promise to take care (of).
A place we promise to care (for).
Comments  
Yes, you should.
LatinHello.

In these sentences should I use the preposition at the end?

A place we promise to take care (of).
A place we promise to care (for).
Yes, you should use the preposition. A place we promise to take care of.