The answers are in "keys to words"! You are having trouble with the small common words. "keys to words" is the answer. http://www.keys2words.info/ I like your questions

WITH

i don't think so...From the mean of your examples,i have my answer like this: "My mind has not eased about that yet" (Notes:This should be used in the present perfect to mention the result that still related in the present;and the adverb"yet" is often used in the end of a question or a native sentence.)

first one. :)