Some problems about learning English

When I speak English, I have to think a long time to complete the sentence. When I read an English passage, I just read word by word, can't read word groups. It is so hard for me. I just can understand what the speaker is talking about, but I can't say it by myself. I have been put an execution[?] because my poor pronunciation!

[Good work basically.  I couldn't figure out what you were saying in the last sentence.  Could you put it another way?  Also, remember to put a space after all periods and commas.]