164 Form
Present tense consists auxiliary "Be" and present participle (Verb+ing)
165 Spelling
A.For verbs which end up with a single letter "e"
---Add "ing" at the end of them instead of "e"(except"age","dye"and"singe")
For verbs which end up with double "e"
---Add "ing" at the end of them directly
B.For single syllable verbs which contain only one vowel and end up with a single consonant--
Double write that consonant and add "ing" at the end of them
The ending letter which is behind a single vowel should always be double written.
In American English,you can put on "ing" directly at the end of the verbs which end up with "y" .The spelling doesn't change.
還有ie結(jié)尾的變成y呀.