1.We have written the report yesterday.
The product is full guaranteed for a year.
Welcome to the forum, simpy.
We like to help when we can, but we prefer a request ("Please correct") to a command ("Correct")
Originally Posted by simpy
1.We have written wrote the report yesterday.
The product is fully guaranteed for a year.
'Correct the following sentences', simpy, sounds like an instruction for a grammar exercise which you have been given for homework, which we don't normally do.