Công thức ở trong email.

The recipe is in the email.

Breakdown of Công thức ở trong email.

• ở: at
• trong: in (enclosed by something)
• email: the email
• công thức: the recipe

Questions & Answers about Công thức ở trong email.

What does công thức mean here?

Công thức can mean formula, recipe, or sometimes a set method/pattern, depending on context.

So if the meaning has already been given to you, the important thing to know is that this Vietnamese noun is a bit broader than any single English word. You choose the best English translation from context.

Why is there no word for is in this sentence?

Vietnamese often does not use a separate verb like English is in simple location sentences.

In Công thức ở trong email, the location expression does the job:

• ở marks location
• trong means in/inside

So the sentence naturally means that the formula or recipe is in the email.

Using là here would not be natural. Là is not the normal word for location.

Why are both ở and trong used? Would just one be enough?

This is a very common learner question.

• ở = at, in, located at
• trong = in, inside

Together, ở trong means something like in / inside. It is natural Vietnamese, and it adds a clear sense of location.

In many situations, trong email would also work. So:

• Công thức ở trong email = fully natural
• Công thức trong email = possible, but can sound more compressed or less clearly like a full sentence