Ben Johnson dedicates his comoedie called the Poetaster to him:-- 'A thankefull man owes a courtesie ever, the unthankefull but when he needes.
I will most willingly give whatsoever in your conscience you shall deeme it worth, and if at any time you shall have occasion to use me, you shall find me a thankefull friend to you and yours.
Your worship speakes like a most thankefull and reuerend youth, and I praise God for you Leon.
I will most thankefull be, and thankes to men Of Noble mindes, is Honourable Meede Tit.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "thankefull" in a variety of sentences. We hope that you will now be able to make sentences using this word.