Either would be appropriate depending on context.
the synonym for skilled might something along the lines of unskilled.
Being proficient at doing something.
qualifié - compétent
"The money you get for selling something" can be expressed by using the words "payment", "revenue", or "proceeds".
you can say something could effect this
all you say is "I love using paperclips" or "Do you like using paperclips" something like that
To go camping out in the wilderness, you have to know the basic survival skills.
To say something similar to a famous quote, but not using the exact same words.
i parachuted out of a plane, i had to say something stupid though.
Say "Xbox off" or something simular
No. When you say you have seen something, you are using present perfect tense.
Yes, that is exactly what it is, but you can also say that is is comparing something not using like or as