There are several words for very depending in the context of the sentence in which it used.
In the context of something being "very" interesting you would use "sehr/äußerst/hoch/wirklich/echt -interessant".
In the context of "Thank you very much" you would use the word "sehr"
Sehr nett, or
Sehr gut
Sehr gut, mein freund.
sehr gut
"Very good" in English is "sehr gut" in German.
erfolgreich
sehr sehr gut
For "Robert" is a name it stays the very same in german.
Gern geschehen
sehr stark
sehr gut
Sehr klein.
"Very good song" translated into German is "Sehr gutes Lied".
very wise = sehr weise
very simple: der Wind
Sehr interesant