Gerunds after prepositions

1.    Children can learn with playing

2.    You can feel better at working in the garden

3.    Some are disappointed about seeing the news of covid

4.    We are sick of staying in home

5.    Many have anxiety at studying online

6.    We understand the importance in getting safe in home

7.    We have time to focus on reading or writing

8.    We are looking forward to seeing our friends

9.    We can prevent from getting sick if we stay in home

10. The government warned us against visiting sick people