for you like sentences, use the structure...것을 좋아해요 to make it clear in Korean. with your sentence " I like drawing" you need to clarify it by saying " 나는 그림 그리는 것을 좋아해요" for the one about "I like to use study Korean" you should say 나는 한국어를 공부하는 것을 좋아해요 , which is grammatically correct, if you want to say it like natural and casual Korean way of saying it it would be "난 한국말 공부하는 거 좋아해요"