What’s wrong with the phrase I seen?

Why is I amnt not standard in English?

What’s the correct usage of there’s versus there are?

When should you use despite versus in spite of?

Why is might of incorrect, and what should be used?

What’s the difference between preventive and preventative?

When should fewer be used instead of less?

How do you avoid common punctuation mistakes?

Why is I should of incorrect, and what should be used?

What’s the correct usage of neither versus either?