Here is a basic chart of how the consonants and vowels of Hangeul combine. From here, 받침s are simply put on the bottom. Writing this over a few times is a great way to memorize.
If you look closely, you can find some basic Korean vocabulary words!
For example, if you don't like the 비 (rain) you could stay inside and have a glass of warm 우유 (milk) or perhaps some 차 (tea). Or you could go to the hospital and measure your 키 (height), get a 피 (blood) test, or check and see if your 코 (nose) or 혀 (tongue) are functioning properly.