In my opinion, the hardest thing about learning English is to useusing the correct tense, f. For example, when I need to use "I doneid something" versus "I have done something".

"Done" usually only appears after "have", "had", "will have", or " 've" (as part of a contraction like "I've" or "you've"). Otherwise, it becomes "did". This verb is kind of irregular, as it is one of the few words in the English language that does this: "I did something, something was done."

The iIrregular verbs isare hard for me as well, f. For example, the word "buy" I tend to write "buyed", but it is not correct, the correct form is "bought".

After a plural noun, you have to use "are" instead of "is". "This cat is cute." "These cats are cute."

The same thing happens with another verbs like "break" (broken, broke).

"Another" is mostly used to refer to just one, other thing, not multiple. Think of it as a contraction of "an other" ("a" becoming "an" before a word that starts with a vowel). It is *an* other verb. Or, "another" verb.

When talking about multiple things, you remove the "an". "Other verbs".

I tend to write and spokeeak very long sentences, but I think that English is a good language tofor expressing yourself with shorter sentences, butthough I'm not very wellgood at doing this.

"Spoke" is the past tense of "speak", and when talking about things you tend to do, verbs after "tend to" should be present tense (even when the verb "tend" is in a different tense itself. Example: "When I was still in college, I tended to cook and eat dinner myself")

"...think that English..." isn't actually wrong, but omitting the "that" makes it sound more natural in this case.

In this case, I think "for expressing" works better than "to express", but there are some cases where you might want to use "to [present tense verb]" instead of "for [progressive tense verb]". For instance: "This is a good way to express yourself." However, for most nouns (like "language", "station", "restaurant", etc), you should probably gravitate towards using "for [progressive]" after them. Another example: "I know a really good website for learning English."

I changed the second "but" to a "though" just to make things sound clearer. They mean almost the exact same thing, so although it's not wrong to use "but" twice, it can sound better to switch them up within sentences.

"Well" is not an adjective we often use to describe how we are at doing something. Although, we may describe how well something has been *done*. But if we ourselves are not well, that means we are sick or have poor health.
Also, if we want to describe our proficiency with a task, we have to also put "at" between the adjective and the progressive verb ("doing", in this case). So, "I'm not very good *at* doing this."

In my opinion, the hardest thing about learning English is to use the correct tense, for example, when I need to use "I done something" versus "I have done something".

Kind of proves your point but "I done something" is always grammatically incorrect. What can be used is "I did something" or "I have done something" :)

The irregular verbs isare hard for me as well, for example, for the past tense of the word "buy" I tend to write "buyed", but ithat is not correct, the correct form is "bought".

is -> are because you're talking about more than one irregular verb.

The same happens with another verbs like "break" (broken, broke).

"another" can only be used with singular nouns.

I tend to writespeak and spokwrite very long sentences, but I think that English is a good language to express yourself with shorter sentences, buthowever, I'm not very wellgood at doing this.

"speak and write" sound more natural than "write and speak", though I can't give a good rule for why. "spoke" is wrong because of the tense.

Multiple "but" clauses in a sentence sound a bit awkward so I changed the second one to "however".

I tend to write and spokeeak very long sentences, but I think that English is a good language to express yourself with shorter sentences, but I'm not very wellgood at doing this.

In my opinion, the hardest thing about learning English is when to use the correct tense, for example, when I need to use "I doneid something" versus "I have done something".

The irregular verbs isare hard for me as well, for example, the word "buy" I tend to write "buyed", but it is not correct, the correct form is "bought".

The same happens with another verbs like "break" (broken, broke).

I tend to write and spokeeak in very long sentences, but I think that for English is a good languaget is better to express yourself with shorter sentences, b. But I'm not very wellgood at doing this.

In my opinion, the hardest thing about learning English is when to use / is using the correct tense, for example, when I need to use "I doneid something" versus "I have done something".

The irregular verbs isare hard for me as well, for example, the word "buy" I tend to write "buyed", but it is not correct, the correct form is "bought".

The same happens with another verbs like "break" (broken, broke).

I tend to write and spokeeak very long sentences, but I think that English is a good language to express yourself with shorter sentences, but I'm not very wellgood at doing this.