Question

help diagram sentence: Sandra and I are planning to go to the mall tomorrow, but today I am working on my paper.

Answer 1

This sentence has two independent clauses.

First:
Subject: Sandra and I
Verb: are planning
Infinitive phrase (direct object): to go to the mall tomorrow

If you analyze the second clause, we'll be glad to check it for you.

You will find this site helpful.

http://homeworktips.about.com/od/englishhomework/ss/diagram.htm

Answer 2

http://members.cox.net/teachro/diagramming/diagramming.htm

At this site, click on Compound/Complex Sentences, then on Compound Sentence.

Sandra ... tomorrow is your first clause.
"but" is your conjunction
The rest of the sentence is the second clause.

Notice that in your first clause, there is a compound subject. Use this:
http://members.cox.net/teachro/diagramming/nounsverbs/compsub.htm

Make sure you are clear on all parts of both clauses before you begin. Use the other links on the first website I gave you above if you have questions about other parts.

And please repost if you have further questions.

Answer 3

what is your name ?