[Grammar] Have shown/showed

[Mr.Lucky_One]

Are there any differences between these two forms?

 

[bhaisahab]

Are there any differences between these two forms?

It depends on the context.

 

[Mr.Lucky_One]

Could you please give me some instances to explain the differences?

 

[bhaisahab]

Could you please give me some instances to explain the differences?

I think it would be better if you wrote some sentences showing how you think they should be used.

 

[Mr.Lucky_One]

Well,
1.I have shown my homework to the teacher
2.I have showed my homework to the teacher.

The point is that I really have no idea about differences between these two sentences. I don't even know whether it is possible at all to say "I have showed..."
So are both of the sentences correct?

 

[5jj]

'Have showed' is possible - there are 103 citations in COCA; however, 'have shown' is far morecommonly used - 5,346 COCA citations.