Pronounciation "sk", "tj", "sj", etc

Question 1

The sj-sound

Answer 1

makes the “h” sound, or like “who” as in…
sju - seven
sjukhus - hospital
själ - soul

Question 2

sk

Answer 2

pronounced the same way as “sj” when followed by soft vowels e,i,y,ä or ö. Examples:
sked (whed) - spoon
skicka (whicka) - send

Question 3

stj

Answer 3

makes the same “sj” or “sk” sound like…
stjärna (wharna) star
skjorta (whorta) shirt

Question 4

The tj-sound

Answer 4

makes the “sshhhh” sound - there are many ways to spell this.
The letter “k” followed by “e,i,y,ä and ö
kyrka (sherka) church
kök (shook) kitchen

The tj-sound is of course also spelled with “tj” as in tjej (girl) and tjock (thick), and also with “kj” as in kjol (skirt).