Question

my austere father used to avoid all inessential comfort and luxuries.(turn into Complex sentence)

Answer 1

My father who is austere used to avoid all unessential comfort and luxuries.

HOPE IT HELPS....

Answer 2

The complex sentence refers to the sentence which contains at least one dependent clause and an independent clause. A dependent clause is the clause which cannot stand alone in its meaning on the other hand independent clause refers to the phrase which can stand alone, though both have a subject and a verb.

Therefore, the sentence, "My austere father used to avoid all inessential comfort and luxuries" changed into complex sentence it would be written as:

My father who is austere used to avoid all nonessential comforts and luxuries.