Put the verbs in brackets into the correct form (to) infinitive or -ing form.

I have always enjoyed 1) (take part) in sports, so when my P.E. teacher asked me if I wanted to 2) (learn) how 3) (play) rugby, I decided to 4) (try) it. It sounded ideal for me as I don't mind 5) (be) outside in cold weather, and I like to 6) (exercise). I expected 7) (find) it easy, but it wasn't. I kept 8) (practise) though, and now I'm quite good. My coach thinks I may 9) __ (become) a professional rugby player one day.

Cross out the unnecessary words where necessary.

1. If you fancy trying a sport which doesn't
2. involve using too much energy or money,
3. you should to visit the Brymouth Billiards club.
4. The price per hour is £1.50, and we will to help
5. you improve your game. So, if you
6. enjoy to playing billiards, snooker, or pool in a
7. relaxed setting, we suggest to trying our club.

To determine whether to use the infinitive form (with 'to') or the '-ing' form of a verb, it's helpful to remember certain rules and patterns in English.

Here is the completed text:

taking part - Use the '-ing' form after 'enjoy,' as it's a verb that typically takes a gerund.
learn - Use the infinitive form after 'want,' as it's a verb that typically takes the infinitive.
to play - Use the infinitive form after 'how,' as it's used with 'how to.'
to try - Use the infinitive form after 'decide,' as it's a verb that typically takes the infinitive.
being - Use the '-ing' form after 'mind,' as it's a verb that typically takes a gerund.
to exercise - Use the infinitive form after 'like,' as it can be followed by either form, but here it sounds more natural with a to-infinitive.
to find - Use the infinitive form after 'expect,' as it's a verb that typically takes the infinitive.
practising - Use the '-ing' form after 'keep,' as it's a verb that typically takes a gerund.
become - Use the infinitive form after 'may,' as it should be followed by the base form of the verb.

Crossing out unnecessary words:

If you fancy trying a sport which doesn't
involve using too much energy or money.
you should to visit the Brymouth Billiards club.
The price per hour is £1.50 and we will to help
you improve your game. So, if you
enjoy to playing billiards, snooker, or pool in a
relaxed setting, we suggest to trying our club.

This exercise involves understanding when to use gerunds and infinitives after certain words or phrases. Typical patterns like 'enjoy' + '-ing', 'decide' + 'to', and 'suggest' + '-ing' are involved, showing common usage in English grammar.