Write present, present participle, past or past participle to identify the principal part of the underlined verb.

1. Genius sometimes slows productivity. Slows is underlined and this is present
2. Leonardo da Vinci possessed great genius. possessed is underlined and this is past.
3. It describes his many unfinished projects. Describes is underlined and this is present I think
4. Only the drawings have survived. Have survived is underlined but I can't figure this one out
5. Leonardo invented many machines. Invented is underlined and this is past

Please review the above and correct me on anything wrong and or point out how to find the answer.

They are all right except for 4.

http://www.chompchomp.com/terms/participle.htm

4. Past participle

Yes. It's a past participle.

Ty for checking this for me

You're welcome, Patrick.

Your answers for the first three sentences are correct. Here's how to determine the principal part of the underlined verb for each sentence:

1. "Genius sometimes slows productivity." - The underlined verb is "slows." To identify the principal part, you can simply ask yourself: "What is the base form of this verb?" In this case, the base form (or present tense form) of "slows" is "slow." So the principal part is "slow."

2. "Leonardo da Vinci possessed great genius." - The underlined verb is "possessed." Again, you can ask: "What is the base form of this verb?" The base form of "possessed" is "possess." So the principal part is "possess."

3. "It describes his many unfinished projects." - The underlined verb is "describes." Asking the same question: "What is the base form of this verb?" The base form of "describes" is "describe." So the principal part is "describe."

4. "Only the drawings have survived." - The underlined verb phrase is "have survived." To determine the principal part, you need to separate the helping verb ("have") from the main verb ("survived"). The base form of "survived" is "survive," so the principal part is "survive."

5. "Leonardo invented many machines." - The underlined verb is "invented." Following the same process, the base form of "invented" is "invent." So the principal part is "invent."

In the given sentences, all the underlined verbs are correctly identified. Well done!