Here are some standard Chords to learn that will help you get started
I have indicated the corect fingering that you should use for each Chord, also note the strings that should not be played marked with an X.
Take your time and practice moving from chords to chord dont worry if it doesnt sound musical at this stage i want you to get comfortable with each chord position and being able to move between each chord.
Try playing 4 down strokes for each chord then move to the next. What i want you to work on is an even strumming and counting. Try not to stop strumming between chord changes. If you have a difficulty doing this then slow the strumming rate down to a comfortable tempo that you can comfortably work with.