expression, godan verb (-ru)
I'd be lying if I said ...
Fixed expression used to admit that a statement would not be entirely true. Often followed by a contrasting clause or used to soften a claim.
全然疲れてないと言ったら嘘になるけど、まだ頑張れる。
I'd be lying if I said I'm not tired at all, but I can still keep going.
彼のことが好きじゃ
I'd be lying if I said I don't like him.