All you do is go to google translate and the rest is pretty much self explanetory. Love is love in Japanese = 愛は、愛です
Love in Japanese is 愛Phonetically it is Ai
You can't. The pronunciation of "g" in Japanese would be "jii" though, or "ジー".
There is no letter "D" in Japanese. It is written in as a collection of phonemes in syllables. Example: Da, de, do.
皆大好きです => 'minna daisuki desu' [lit: everyone, I love you] or more literally you can say あなた達大好きです => 'anatatachi daisuki desu'.