I ate half an apple.

[tufguy]

1) I ate half an apple.

2) I ate only half apple.

3) I ate only half portion of an apple today.


Please check my sentences.

 

[GoesStation]

1) I ate half an apple. :tick:

2) I ate only half apple. :cross:

3) I ate only half portion of an apple today. :cross:


Please check my sentences.

You've written "half portion" in many of your sentences. If you learn one thing here, please learn never to write it again.

Please find the error in sentence 2 and write a corrected version in a new post.