Missing values syntax- skip pattern survey

#1
HI.
I am trying to look at the relation between smartphone use and app use and mode choice for a class assignment.
I have some data which I got from an online forum , but the questions were skipped pattern.
So how do I write a syntax for skip pattern in spss to define the value as missing? For example if the respondent current cell phone is not a smartphone,then the smartphone use cases would be user-defined do I define that in spss.
I have posted the question below

Is your current cell phone a smartphone?


YES 1
NO [GO TO Q8] 2
DK [GO TO Q8] 3
RF [GO TO Q8] 4


Q3. Do you use your smart phone for…

CHOOSE ALL THAT APPLY
communication such as talking, texting, or email? 1
for social media? 2
for entertainment? 3
for searching the web? 4
for shopping or ordering items? 5
for navigation? 6
DK 7
RF 8

Q4. For which of the uses we just discussed do you use your smart phone the most?

COMMUNICATION (TALKING, TEXTING, EMAIL) 1
SOCIAL MEDIA 2
ENTERTAINMENT (MUSIC, VIDEO STREAMING, GAMES, READING) 3
SEARCHING THE WEB 4
SHOPPING/ORDERING ITEMS 5
NAVIGATION 6
DK 7
RF 8