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Câu điều kiện và giả định · CEFR B2 · Alternatives to If

As/So Long As and Provided (That)

1Công thức

as long as / so long as / provided (that) + present simple, main clause

2Giải thích

As long as, so long as, provided (that) có nghĩa 'miễn là, với điều kiện là' (= only if). Dùng thì hiện tại cho nghĩa tương lai; provided (that) trang trọng hơn.

These expressions mean if, with the idea of only if. They state the condition that must be met for the main clause to be true.

Dấu hiệu: as long asso long asprovided that

3Khi nào dùng

  • Stating a necessary condition
  • Giving permission with a condition

4Quy tắc cần nhớ

  • Use a present tense for future meaning, as with if
  • Provided (that) is slightly more formal; that can be omitted

5Ví dụ

  • You can borrow my laptop as long as you return it tomorrow.

  • Provided that everyone arrives on time, we will begin at nine.

6Lỗi thường gặp

  • As long as it will be sunny, we'll go. (should be as long as it is sunny)
  • You can go provided that you will finish your homework. (should be provided that you finish)

7Dễ nhầm với

First ConditionalUnless