B1+ Gerunds and Infinitives
I tend TO PREFER / PREFERRING savoury snacks like crisps over sweet ones like chocolate.
tend to prefer (tend + infinitive)
You should avoid TO EAT / EATING late at night if your having trouble sleeping.
eating (avoid + gerund)
Our teacher made us DO / TO DO / TO DOING so much work on Tuesday. =(
made us do (make + object + bare inf.)