V + (ㄹ/을)거예요
When we want to speak in future tense, we conjugate korean verbs by removing the verb stem ‘다’ and replacing it with either ㄹ거예요 or 을거예요.
1. When the verb’s last character is a consonant, we replace the stem with ‘을거예요’.
2. When the verb’s last character is a vowel, we append ㄹ to the bottom of the verb and add 거예요.
3. ㄹ/을 거야 is the plain form of this ending.
내일 갈거예요. = I will go tomorrow.
뭐 입을거예요? = What will you wear?