... when the subject of the participle and the subject of the sentence don’t agree. For example:Incorrect: Rushing to finish the paper, Bob’s printer broke. The subject is Bob’s printer, but the ... breaking the word into two parts:broc and coli.●Calisthenics: Stress the first i and the e to avoid dropping these letters when you spellcalisthenics. Otherwise, you could end up with calesthenics ... add an s to the end of the word,as in mix-ups, takeoffs. If the compound word ends in -ful, add an s to the end of the word,as in cupfuls.●Some nouns change their spelling when they become...