How to use correct past tense grammar
Which one is the correct sentence:
The company sales in 2018 was decrease 10% compare to sales in 2017. or
The company sales in 2018 was decreased 10% compares to sales in 2017

Thanks

Question

How to use correct past tense grammar
Which one is the correct sentence:
The company sales in 2018 was decrease 10% compare to sales in 2017. or
The company sales in 2018 was decreased 10% compares to sales in 2017

Thanks

Answer

Neither is grammatically correct because of the word placement of was (past tense word) but I can show you two examples.
Past tense: The company sales in 2018 decreased by 10% compared to sales in 2017.
Present tense: The company sales are decreasing by 10% compared to sales in 2017

Answer

Neither.

The best way to write this is:

Sales decreased 10% compared to sales in 2017.

You could also say:

Sales were 10% less than sales in 2017.