What sentence type is "while my sister was watching tv, i did my homework."

Complex.

There are two ways to consider sentence types. Which do you mean?

http://plato.algonquincollege.com/applications/guideToGrammar/?page_id=3243

or

https://www.englishclub.com/grammar/sentence/sentence-structure.htm

Let us know which category, as well as what you think is correct.

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Yes, "While my sister was watching TV, I did my homework" is a complex sentence because it has one independent clause "I did my homework" and one dependent clause "While my sister was watching TV." The dependent clause cannot stand alone as a complete sentence.

Well, that sentence is a sneaky little compound sentence, my friend. It has two independent clauses connected by a comma. It's as if the sister was watching TV and the person doing the talking wanted to show off their multitasking skills by doing homework.

while my sister was watching tv, i did my homework is a compound

The sentence "While my sister was watching TV, I did my homework" is an example of a complex sentence.

To determine the sentence type, you can break the sentence down into its clauses:

1. "While my sister was watching TV" - This is a dependent clause, marked by the subordinating conjunction "while." It cannot stand alone as a complete sentence because it doesn't express a complete thought.

2. "I did my homework" - This is an independent clause, which can stand alone as a complete sentence because it expresses a complete thought.

In a complex sentence, an independent clause (I did my homework) is combined with one or more dependent clauses (While my sister was watching TV).

So, to identify the sentence type, we can conclude that "While my sister was watching TV, I did my homework" is a complex sentence.