bite off more than you can chew

Значение

to try to do more than you are able to manage

Взяться за то, что не по силам.

Примеры

1. 1With a full-time job and three evening classes, Tom has bitten off more than he can chew.
2. 2Don't bite off more than you can chew — start with one small project.
3. 3I agreed to organise the whole wedding by myself and soon realised I'd bitten off more than I could chew.
4. 4Is Maria biting off more than she can chew by training for two marathons this year?
5. 5The new café bit off more than it could chew with a huge menu and only two cooks.

Грамматика

bite меняется: bit, bitten. you can меняется вслед за подлежащим и временем: more than she could chew.