To convert the given present tense verbs into their present continuous forms, we add "-ing" to the base form of the verb. Here is a step-by-step solution:
1. buy - buying
2. read - reading
3. do - doing
4. run - running
5. drive - driving
6. sit - sitting
7. eat - eating
8. fix - fixing
9. snow - snowing
10. speak - speaking
11. get - getting
12. swim - swimming
13. help - helping
14. take - taking
15. make - making
16. talk - talking
17. play - playing
18. write - writing
These forms follow the rules of adding "-ing" to the base verb. For most verbs, simply adding "-ing" to the base form is sufficient. However, for verbs that end in a consonant-vowel-consonant pattern (e.g., run, sit, swim), the final consonant is doubled before adding "-ing."
