I learned several negative words, which are sometimes needused to express how you feel. I learned several negative words, which are sometimes used to express how you feel.

I think thesat the three sentences above are informal expressions. I think that the three sentences above are informal expressions.

Other than the above, I know severala few other expressions. Other than the above, I know a few other expressions.

"Several other" would be used, if the following sentences were greater in number than the previously mentioned. Since that's not the case, the opposite, that is "few other" would be used. You could add "etc;" after the below sentences if you want to use "several".

Other than the above,I know severala few other expressions. Other than the above,I know a few other expressions.

Other than the above, I know severala few more expressions. Other than the above, I know a few more expressions.

"A few other" like the other corrections is also fine, of course. This is another option.

I hope that I dwon't need to use these hatredeful expressions as much as possible as I can. I hope that I won't need to use these hateful expressions as much as possible.

I hope that I dwon't need to use these hatredeful expressions as possible as I can. I hope that I won't need to use these hateful expressions.

I hope that I don't'll need to use these hatredeful expressions as little possible as I can. I hope that I'll need to use these hateful expressions as little possible.

Another alternative to the other corrections.