To bring to accomplishment; perform; execute; effect; transact; finish.
To act; work.
To conduct oneself; fare, as in health.
To answer the purpose; suffice.
Doer.
" Why yes, you do. – Jewel's Story Book by Clara Louise Burnham
I do speak, - I do to speak. – The English Language by Robert Gordon Latham
What does he want to do? – The Garden Of Allah by Robert Hichens