gratefulI'm grateful for your kindness.
appreciativeI'm really appreciative of all the help you've given me.
I/we appreciateI really appreciate all the help you've given me.
glad ofWe were very glad of some extra help.
thankfulI'm just thankful that she's safe and well.
relievedI'm relieved to hear that she's not as ill as we thought.
touchedShe was really touched that he remembered her birthday.