I’m interested what is he doing right now isted of writing me.
Arthur is writing his sentences.
Is Arthur writing his sentences?
Arthur is not writing his sentences.
Victoria is doing her best to learn English.
Is Victoria doing her best to learn English?
Victoria is not doing her best to learn English.
Tamara is caring about her keys to not lose them.
Is tomorrow caring about her keys to not lose them?
Tamara is not caring about her keys to not lose them.