1. It depends on what you intend to say. (Do you think the cook is tasty?) You do seem to be talking about your ability to do something in the future, except that you wonder if you can do it now. It's a little confusing.Originally Posted by Helped Wanted! T_T
2. You can use either for or to depending on the intended meaning.
3. You need to make up your mind. Did you just tell him or did you tell him last time? The phrases just told you and last time don't go well together.Just suggests immediately beforehand, while last time in this context suggests some previous time not immediately beforehand.