Here Sarah is the subject complement of the sentence because it follows the linking verb was It is the subject and the gerund singing serves as.
Example of gerund subject. Making noise is what happy children and almost all teenagers do best. Normally when you make a sentence you always make sure that the subject of your sentence is nouna name of person place thing etc. More examples of gerunds as subjects include.
It is important to note the distinction between the gerund verb and the present participle. Swimming in the winter can boost your immune system. She hates going out at night.
Gerund as Subject Complement. Running is good exercise. Watching television does not burn many calories.
Gerunds can appear by themselves or they can be part of a larger gerund phrase. Writing is an exchange of ideas. In the following examples the gerund phrase is acting as the subject of the sentence.
Sleeping is hard if you suffer from anxiety. Here are 50 Examples of Gerunds. Being rude to customers wont earn you many tips.
Since cooking acts as a noun in the sentence rather than a verb it becomes a gerund. The subject is the thing or person that carries out the action of the verb. But in the example above cooking is a transitive verb that is followed by the direct object spaghetti.