I ate this cake yesterday, it was great. You should try some of what I've left for you.

[BestBuddy]

If you eat something, does it mean that there will be nothing of what you'll eat?
Why am I asking? I want to know which form of our verb 'to eat' to choose.

Example:
A: Have you eaten the cake that I bought yesterday?
B: Yes, it was great.
A: How much of it is left?
B: About 60%.

 

[5jj]

If you eat something, does it mean that there will be nothing of what you'll eat?

That is the usual assumption. If we think that not all of something was consumed, we'll use a different verb,

A: Have you eaten the cake that I bought yesterday?
B: Yes, it was great.

A: Have you tried/Did you try the cake that I bought yesterday?
B: Yes, it was great.
A: How much of it is left?
B: Just over half.

 

[emsr2d2]

The sentences in your title appear nowhere in your post. What do they have to do with your question?

 

[BestBuddy]

The sentences in your title appear nowhere in your post. What do they have to do with your question?

Do you really not understand? This has a direct and obvious connection to my question.

If you eat something, does it mean that there will be nothing of what you'll eat?
Why am I asking? I want to know which form of our verb 'to eat' to choose.

Example:
A: Have you eaten/Did you eat the cake that I bought yesterday?
B: Yes, it was great.
A: How much of it is left?
B: About 60%.

• I ate this cake yesterday, it was great. You should try some of what I've left for you.

And according to this

That is the usual assumption. If we think that not all of something was consumed, we'll use a different verb,

the sentences in my title aren't correct because after eating "this cake" I left some of it.

 

[BestBuddy]

That is the usual assumption. If we think that not all of something was consumed, we'll use a different verb,

A: Have you eaten the cake that I bought yesterday?
B: Yes, it was great.

A: Have you tried/Did you try the cake that I bought yesterday?
B: Yes, it was great.
A: How much of it is left?
B: Just over half.

Is this a grammar rule or just a convention?

If we had asked that person, "What are you doing?", I think, he would have said, " I'm eating his cake" not "I'm trying this cake".
I mean one teacher told me that none of your tenses show the completeness of the object and that I should stop thinking whether the object is finished and concentrate only on the action.

 

[5jj]

Do you really not understand? This has a direct and obvious connection to my question.

You apparently don't understand that we ask you to use in your title phrases/sentences that you are asking about. You also don't appear to understand that we don't like snark here. I am closing this thread for a couple of days in the hope that you'll reconsider your attitude.