4. Complete the sentences with the correct -ing or (to) infinitive form.
1. You mustn't
(go) ice climbing by yourself.
2. Tom isn't brave enough (try) bungee jumping.
3. How about
(go) ice skating at the weekend?
4. Sophia regrets
(eat) so much
5. Alex is considering
(take part) in a jousting tournament.
5. Put the verbs in brackets in the Future Perfect, Future Continuous or Fut
Continuous

1. You mustn't go ice climbing by yourself.
In this sentence, the correct form is the base infinitive "go". The word "mustn't" indicates a prohibition or a strong recommendation not to do something.

2. Tom isn't brave enough to try bungee jumping.
In this sentence, the correct form is the infinitive "to try". The phrase "isn't brave enough" suggests that Tom lacks the courage or confidence necessary for the action.

3. How about going ice skating at the weekend?
In this sentence, the correct form is the gerund "going". The phrase "how about" suggests a suggestion or invitation to do something.

4. Sophia regrets eating so much.
In this sentence, the correct form is the gerund "eating". The verb "regrets" is followed by the gerund form when talking about something someone feels sorry about or wishes they had not done.

5. Alex is considering taking part in a jousting tournament.
In this sentence, the correct form is the gerund "taking". The verb "considering" is followed by the gerund form when discussing someone's thoughts or plans.

6. Put the verbs in brackets in the Future Perfect, Future Continuous, or Future Simple.
Unfortunately, there is no context or specific verbs in brackets provided in your question. To answer this accurately, I would need to know the specific verbs and the tense required for each one.