だけでなくnot only … but also
だけ is "only" and でなく is "not", so A だけでなく is "not only A". B comes next, usually with も: "B too".
At this shop the tea is good too, not just the coffee.
He not only speaks Japanese but can also read Korean.
After a noun
Noun + だけでなく
コーヒーだけでなく, 春だけでなく.
After a verb or an adjective
Plain form + だけでなく
話すだけでなく, 広いだけでなく. A な-adjective keeps its な: 便利なだけでなく.
In conversation
だけじゃなくて
It attaches the same way: 肉だけじゃなくて, 話すだけじゃなくて.
Not only A: B too
A is true, and that isn't all. The も on B does the work of "also".
That movie is popular with adults as well as children.
に is said once, on B: 大人にも.
You can enjoy the flowers in this park in autumn as well as in spring.
A verb or an adjective goes in front in its plain form. A な-adjective keeps its な.
My older sister not only cooks but also bakes bread.
This app is not only handy but also easy to use.
だけでなく or ではなく?
Take だけ away and the meaning turns around. ではなく crosses A out. だけでなく keeps it.
I work on Sunday, not Saturday.
Saturday is out.
I work not only on Saturday but on Sunday too.
Saturday stays, and Sunday is added.
In conversation: だけじゃなくて
だけでなく belongs to writing and careful speech, and so does the fuller だけではなく. Talking, people mostly say だけじゃなくて.
Eat your vegetables too, not just the meat.
Tanaka speaks Chinese too, you know, not just English.
Close neighbours
"Not A but B": A is crossed out and B is put in its place.
What I ordered was not tea but coffee.
ばかりでなくN3
The same meaning, a little more formal.
This course covers not only grammar but also pronunciation.
はもちろんN3
"A, of course, and B too": A goes without saying.
Tanaka can speak English, of course, and Chinese as well.
Check yourself
1What does this mean?
この
Choose an answer to see why.
2Which one fits?
この
Choose an answer to see why.
More detail
それだけじゃなくて
At the start of a new sentence it is "and that's not all". In writing, それだけでなく.
That place is cheap. And that's not all: the portions are big too.
More sentences
Not only does my older brother not eat meat, he doesn't eat fish either.
This job not only needs experience but also takes time.
This town is not only quiet but also safe.
This system not only simplifies the procedure but also shortens waiting times.
He used to be not just a teacher but a school principal as well.