yes it is. but not with 'I' for example 너 밥 먹고 싶니? Do you want to eat rice? ~고 싶다 is also used, meaning, 'like/want to do' 오늘은 놀고 싶은 날이다. today is a day which I want to play 너 산책 하고 싶어? do you want to walk? 안 하고 싶어. I don't want to do. Thanks