上司が上司なら部下も部下だA is bad, B no better
Noun が the same noun なら, then a second noun も the same noun だ: two people who go together, and neither is any good. Any such pair fits. The best-known is 親が親なら子も子だ.
In this department the boss is bad enough, and the staff are no better. Nobody will take responsibility.
The children are making a racket on the train and the parents don't say a word. With parents like that, no wonder the children are like that.
How to form it
A が A なら、B も B だ
A and B are nouns. The なら isn't "if" here. It only joins the two halves.
With も
A も A なら、B も B だ
Nothing changes: 監督も監督なら、選手も選手だ.
- The two nouns
- Two people or groups that go together: 親 and 子, 上司 and 部下, 夫 and 妻. Now and then, two sides of one thing: 脚本 and 演技.
- What is wrong
- Not said. You both know, or the next sentence tells you.
- Tone
- Fed up. Nearly always blame, for both.
- Where you'll meet it
- Conversation, mostly about people who aren't there. Dialogue in dramas and novels.
In use
The coach is pushing the blame onto the players, isn't he.
The coach is bad, but the players are no better. All they do is skip practice.
The older brother is bad enough, and the younger one is no better. The pair of them turned up late.
Two things to know
Not a way to praise
English "like father, like son" can be warm. This is heard as a complaint. To praise a pair, each half needs its own word of praise.
Sounds odd: 先生が
The teacher is bad enough, and the students are no better. They're both keen.
The first sentence has already complained about both, so the praise comes out of nowhere. For praise: 先生も熱心なら、生徒も熱心だ.
One half is said alone
君も君だ turns the blame on a second person: "and you're no better".
He was wrong to lie, but you're no better, believing him straight away.
Close neighbours
"A is so, and B is so too": each half says what is true of it, good or bad. Here the noun said again stands in for the complaint.
This proposal is bold in its thinking, and realistic in how it would be carried out too.
Check yourself
1What does this mean?
夫が
Choose an answer to see why.
2A friend comes back from a shop and says this. Was she pleased?
店員が
Choose an answer to see why.
More detail
With no second half, なら is "if" again: if this were another time, or another person. 世が世なら is "in another age".
In another age, he would be a lord.
More sentences
The government is bad enough, and the opposition is no better. All they do is attack each other, and neither offers anything concrete.
The shop is bad enough, and the maker is no better. Neither will look into what caused the fault.
The script was bad enough, and the acting was no better. It was hard to sit through to the end.