12) Give Beth this book as soon as she (to come). 13) You (to phone) me after you (to come) ? 14) If there (not to be) coffee, I (to get) some from the shop.

12) Give Beth this book as soon as she comes. - условное предложение нулевого типа (Present Simple + Present Simple);

13) Will you phone me after you come? - условное предложение первого типа (Future Simple + Present Simple);

14) If there is no coffee, I will get some from the shop. - условное предложение первого типа (Present Simple + Future Simple).