I have found out mistakes that many people make them. So try to avoid them.
❎ I speak english good.
✅ I speak english well.
❎ Are you speak English?
✅ Do you speak English?
❎ My age is sixteen.
✅ I am sixteen years old.
❎ I laugh on them.
✅ I laugh at them.
❎ I die from the thirst.
✅ I die of the thirst.
❎ I divide the cake to three parts.
✅ I divide the cake into three parts.
❎ The year consist from 12 mounths.
✅ The year consist of 12 mounths.