English (Basic) - Lesson twenty three

When ending a sentence with a question mark (?) you are asking the person or people you are talking to a question for which you would like an answer. Here you are asking permission to do a particular action.

Here are some examples:

"Can I answer your question?"
"Can I attend the event?"
"Can I move to another spot?"
"Can I call you tomorrow?"
"Can I complete this later?"
"Can I explain myself?"
"Can I help you with your homework?"
"Can I include you in our plans?"
"Can I introduce you to my co-workers?"
"Can I inform you of some bad news?"

The phrase 'Can I get' can be used in a couple different ways.  You can use it to ask a question.

Here are some examples:

"Can I get a cup of water?"
"Can I get a dog?"
"Can I get lunch?"
"Can I get sugar in my coffee?"
"Can I get popcorn at the movie?"

You can also use it when offering to help someone or do something for them.

Here are some examples:

"Can I get you another drink?"
"Can I help you move that?"
"Can I recommend a good place to eat?"
"Can I take you home?"
"Can I help you finish your project?"
Source:http://www.manythings.org/elllo/