Answer:
What types of words are these: madam, civic, eye, level?
Hold the tail, while I fish for you.
My first is in some but not in all. My second is into but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing, rugs used every day.
Two brothers we are, great burdens we bear. All day we are bitterly pressed. Yet this I will say, we are full all the day, and empty when go to rest.
What can be swallowed, But can also swallow you?
I have two eyes in the front and a lot of eyes on my tail