Choose the correct verb form to complete the sentences.

1. Can anyone learn ___?
sing
to sing
singing

2. ___ is basically producing a melody above your normal speaking voice.
Sing
To sing
Singing

3. There is a way of ___ your vocal cords.
stretch
to stretch
stretching

4. Practise vocal scales every day ___ your vocal range.
stretch
to stretch
stretching

5. It’s important ___ sure that you get the tension in your voice but not the strain.
make
to make
making

6. It’s imperative that you ___ all your outer muscles.
relax
to relax
relaxing