だけど

だけど
conjunction
but; however
informalgrammatical
1. but; however
A casual conjunction used to introduce a contrasting statement or add reservation.
I want to go. But I don't have time.
It's expensive. However, the quality is good.
だけど、それでいいの?
But is that okay?
I'm tired. But it's not over yet.
好(す)きだ。だけど、言(い)えない。
I like them. But I can't say it.

A casual sentence-initial 'but', made of the copula だ + けど. Between clauses, the particle けど attaches straight to a verb or i-adjective (高(たか)いけど), while だけど follows a noun or na-adjective (静(しず)かだけど).

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Watch out

高(たか)いだけど is wrong: after an i-adjective or verb, use けど alone. Starting a sentence with a bare けど is very casual.