Expression dictionary — full article
Guessing & Possibility · probably will, must be, I suppose, I expect that...
The grammar pattern (으)ㄹ 텐데 is used to express the speaker's assumption or expectation about a future event or a current state, often based on some logical reasoning or prior information. It sets up a premise for a subsequent statement, question, or suggestion.
(으)ㄹ 텐데 indicates that the speaker is making a conjecture or prediction about what is likely to happen or what the current situation probably is. This assumption then serves as a background or reason for the main clause that follows. It can imply a sense of concern, suggestion, or a gentle warning. For instance, if you say "비가 올 텐데...", you're assuming it will rain, and the following clause might be "우산 가져가세요" (take an umbrella). It can also be used to express a mild regret or disappointment when the expected situation doesn't align with reality.
(으)ㄹ 텐데 attaches to verb and adjective stems.
(으)ㄹ 텐데 is often confused with (으)ㄹ 것 같다. While both express conjecture, (으)ㄹ 텐데 carries a stronger sense of certainty or conviction based on evidence, and crucially, it almost always precedes a consequence, suggestion, or question. It sets up a premise. (으)ㄹ 것 같다 is a more general and softer expression of probability or opinion. Additionally, (으)ㄹ 텐데 can sometimes imply a slight concern or a reason for a subsequent action, whereas (으)ㄹ 것 같다 simply states a likelihood. The -데 part at the end often implies a background or reason for the following statement, similar to -는데/은데.