I really get embarassed using these words, I believe that it's easy to memorize the common phrases that contains them, then trying to apply them in a phrase.
What's the difference, what aspect do I use to distinguish them?
And another slight question! How do I know when it's needed to double the consonant after adding ING to the end of a verb.
Prepositions for and to: Could you give us a few example sentences?
Spelling: click here and practise.