Done with the present and past expression now its time to learn how to say things or events which you intend to do in the future or will probably do in the future.
The verb ending -(으)ㄹ 거에요 [-(eu)l keoeyo can be added to plain base or honorific base to mean will probably <verb>. Let’s take the word 바쁘다 (pappeuda – to be busy ) as an example. The base word is 바쁘 (pappeu) so 바쁠 거에요 (pappeul koeyo) means ‘will probably be busy’ or ‘is going to be busy’. So if you say 내일 내가 바쁠 거에요 (Naeil naega pappeul keoeyo), it means I will (probably) be busy tomorrow.
In earlier post, creating honorific base for of verb has been discussed. This is done by adding -시 on the plain base form of the verb. As such 바쁘 becomes 바쁘시 (pappeushi) in honorific form. Remember you don’t use honorific verb in pertaining to your own actions, it is used when speaking to an esteemed person (someone older or of higher status than you — to show respect). Therefore, you wouldn’t say 내일 내가 바쁘실 거에요 (Naeil neaga pappeushil koeyo). The first form discussed is more appropriate. 내일 당신이 바쁘실 거에요 (Naeil dangsini pappeushil keoeyo) is saying ‘you will (probably) be busy tomorrow’ to an esteemed person.
This verb ending can also be added to past base form of verb. It’s a bit weird that a verb in past form is added with a verb ending that is indicative of something that you will do in the future. Anyway, in my previous post, changing verb in to past form is done by adding -ㅆ어 (-sseo) to the infinitive form of the verb. I know it’s a bit complex so i suggest you read the post on base and infinitive forms of verb. So let’s use the word 가 (ka)which means go, as an example. This verb is base and at the same time infinitive in form, 갔어 (kasseo) is the past base form. To use this verb in probably future form, simply add the verb ending to get this form 갔얼 거에요 (kasseol keoeyo).
For the plain base, verb ending in consonant should take the -을 거에요 (eul keoeyo). This applies to verbs like 읽 (ik) which is base of the word 읽다 (iktta) which means to read. To say ‘i will read this book’ you can say 이 책이 읽을 거에요 (I chaeki ikeul keoeyo). Same transformation can be performed for base verbs like 먹 (meok – means eat) and 앉 (anj- sit). Their probable future form would be 먹을 거에요 (meokeul keo eyo) and 앉을 거에요 (anjeul keoeyo) to mean ‘will eat’ and ‘will sit’ respectively.
Note: 을 거에요 will not happen for honorific form and past base form of verb as verbs will always end in 시 and -ㅆ어 which are both vowel.