Hello Elina I'm Steve in Australia. I'd like to answer your question. You may use "love to sew" when you have already started the sentence. For example: I love to ride my bike, love to sew, love hiking etc. etc. you need to start with whom you are writing about first. It is incorrect to start a sentence with "love to sew". I hope this helps. English is a strange language. If you want to know more just ask.