(으)ㄹ 테니(까)

Overview

The connective ending -(으)ㄹ 테니(까) is used to express that the speaker's intention, will, or prediction in the first clause serves as the reason or basis for a suggestion, request, or command in the second clause. It creates a logical flow where the speaker's state or future action justifies the proposed action to the listener.

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Usage

This ending is particularly useful when you want to provide a rationale for your suggestion or request. The first clause, ending with -(으)ㄹ 테니(까), sets up a premise based on the speaker's plan, prediction, or strong assumption. The second clause then presents an action that logically follows from that premise.

The -까 can be added for emphasis, making the 'reason' aspect more explicit, similar to 'because'. However, it is often omitted in casual speech.

It is commonly used with imperative (-(으)세요, -아/어 주세요) or propositive (-읍시다, -(으)ㄹ까요) endings in the second clause, as it inherently leads to a suggestion or request.

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Conjugation Rules

1. Verbs ending in a vowel or ㄹ: Attach -ㄹ 테니(까)

• 가다 (to go) -> 갈 테니(까)
• 만들다 (to make) -> 만들 테니(까)

2. Verbs ending in a consonant (except ㄹ): Attach -을 테니(까)

• 먹다 (to eat) -> 먹을 테니(까)
• 읽다 (to read) -> 읽을 테니(까)

3. Adjectives: Generally not used with adjectives, as it expresses intention or prediction related to an action.

4. Nouns: Generally not used with nouns.

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Knowledge Plus

-(으)ㄹ 테니(까) implies a stronger sense of the speaker's will or prediction compared to simple reason endings like -아/어서 or -(으)니까. It often carries a nuance of 'I will handle this, so you do that' or 'This will happen, so let's do this.'

The subject of the first clause (with -(으)ㄹ 테니(까)) is almost always the speaker (first person) or an impersonal subject (e.g., weather, situation). It is generally unnatural to use it with a second or third-person subject in the first clause, as one cannot definitively state another person's intention or prediction in this specific structure.

Compare with -(으)니까: While both express reasons, -(으)니까 states a factual or observed reason, whereas -(으)ㄹ 테니(까) states a reason based on the speaker's intention or prediction.

• 비가 오니까 우산 가져가세요. (It's raining, so take an umbrella. - Factual reason)
• 비가 올 테니 우산 가져가세요. (It's going to rain, so take an umbrella. - Speaker's prediction/assumption as reason)