けれどもBut, Although

けれども is the more formal (full version) of the conjunction particle けど. Like けど, it usually carries the meaning of 'but', but because of its formality, sounds a bit more like 'although', or 'provided that'. It simply highlights that 'while thinking about (A), (B)'. Meaning that the (B) phrase is important, or needs to be considered.

As can be seen from these examples, だ will be required when using this conjunction after a な-Adjective, or a noun.

As a reminder, please see below for a list of the most casual form of 'but', to the most formal.

Casual - けど - けども - けれど - けれども - が - Formal.

Fun Fact

Originally, けれども was thought to be a more feminine version of が. However, the modern けど is so common that it has lost all of the feminine nuance that came from けれども.

Caution

As with けど (and other forms of 'but' in Japanese), the phrase after けれども will often be omitted if it is obvious, or the speaker does not want to say it.