Adverbs that modify two verbs

[gramhelp]

In the following sentence, does the adverb "quickly" modify both verbs "ran" and "jumped" or just "jumped"? How would I know?

"They ran and jumped quickly."

Again, in the following sentence, does "quickly" modify both verb or just the first verb. How would I know?

"They quickly ran and jumped."

Thank you for your help.

[rewboss]

It's not clear, but I think most people would assume that in both cases, the adverb modifies both verbs.

If you want to make the adverb modify only one of the verbs, you can change the word order:

"They ran and quickly jumped."
"They ran quickly and jumped."

More subtly, you can use punctuation:

"They ran, and jumped quickly."
"They quickly ran, and jumped."

If you want to make absolute certain that the adverb modifies both verbs, you can turn it into a sentence adverb:

"Quickly, they ran and jumped."

[gramhelp]

Thank you rewboss for the quick response. Yes, I too assume the adverb modifies both verbs in both cases. I'm glad to now know the assumption is valid. Thanks for the ways one can clarify oneself. That was very helpful too. Thank you.