When learning how to strum its better to keep it simple first. Just strum up down up down and count each strum as, "1, 2, 3, 4, 1, 2, 3, 4 ect..."
When inbetween strums say or think the word "and" so when your counting it it will sound like this: "1 and 2 and 3 and 4 and 1 and 2 and 3 and 4 and."
"1" being the first
down strum. "And" being the first
up beat (with no strum.)
"2" being the first
up strum followed by another
"and" being the second
up beat (with no strum,) and so on. [U]Remember that you strum on the numbers only,[/U] and you don't strum on the up beats (some songs will strum on the up beats but that is a little bit more advanced then this.)
Keep your intervals in time equal. What I mean by this... ...Well let me try to illustrate it with an example. Think of seconds on a clock. The first second would be equal to "1." The second second would be equal to "2." The 3rd second would be equal to "3," and so on. 1.5 seconds would be equal to an up beat. 2.5 seconds would be equal to an up beat. 3.5 seconds would be equal to an up beat, and so on. If you were to strum along with a second hand on a clock you would eventually strum your guitar 60 times in one minute. In music we call this a tempo. So 60 strums (or beats) in a minute is a tempo of 60. If you were to strum 2 times for every second on a clock then you would strum your guitar 120 times in one minute. What tempo would we call this? The tempo is called 120 because its 120 beats (or strums) per a minute.
This can seem redundant, but by having this basic knowledge and practicing it you will be able to master any stumming pattern eventually without effort.
Bass guitar is the answer to everything