я уже полчаса стараюсь вспомнить ее

я уже полчаса стараюсь вспомнить ее имя, но до сих пор не вспомнил

Results (English) 1:

I'm already half an hour try to remember her name, but still not remembered

Results (English) 2:

I have half an hour trying to remember her name, but still not remembered

Results (English) 3:

i have half an hour of trying to remember her name, but still don"t remember