We’re back with some grammar work, and this one will be quick, so get ready! I love using gerunds in my writing because I now understand how they work — and it’s time you know the secret, too.
When you see a word ending in -ing at the beginning of a sentence, it is usually:
Setting fires in windy weather is dangerous.
Burning all night, the fire destroyed 50 acres of land.
Note that there is no comma after the gerund, whereas there is one after the reduced clause. Use punctuation clues to help you understand the part of speech.
When using a gerund as a subject, remember that it is singular, and therefore takes a singular verb.