2 and a half years
From July 6th, 1942 to August 4th, 1944.
they hid from 1942 14 august to 1944 4 august - so 10 days short from 2 years
they lived in the secret annex for 2-3 years unconcluding against the Nazis but also including them because of the Jewish laws they needed to hid from
The Franks family lived in the secret annex for 2 years and 29 days before they were captured by the Germans Police.
the secret annex was built a long time ago]
A little bit more than 2 years
Two years and one month.
he was preparing for 1 year
Anne Frank and he family began hiding on July 6, 1942 until they were betrayed and arrested on August 4, 1944. Which is roughly two years.
They could walk around during the lunch hour, and at night when the building was empty. They never wore shoes during the daytime, only in the evenings - Anne writes of Miep getting her a new pair of shoes, at one point.
A pet lizard is not something you can keep secret for very long. They require a lot of care and are hard to hide.
They all took their turn bathing in a large tub once a week, but there was no shower installed in the building - they were not all that common in homes or buildings at that time - most people still preferred baths.