What type of sentence error, if any, is found below?

he sang all alone on the stage. deserted by his sister who became suddenly ill.
fragment
comma splice
correct sentence(s)

Have you been to the bank yet?

Explanation:

The present perfect tense is used to talk about past actions that took place at an indefinite time in the past or to talk about actions that started in the past but are not finished.

The structure for this tense is:

Affirmative: subject + have + past participle --> I have been to Mexico.

Negative: subject + have + not + past participle --> Erica has not cooked dinner.

Interrogative: have + subject + past participle --> Have John and Laura talked to you?

The words "already", "yet", and "never" are commonly used with this tense:

- I have never seen anything like this.