Are the following sentences grammatically correct?

Hi! I would like to know whether the following sentences are correct or not.
-Our actions may come across as extreme.

-We came across as extremists.
-Our actions came across as extremist.

-They came across as revolutionaries.
-Their actions came across as revolutionary.

-We may come across as more revolutionary than other politicians.

-Their decisions came across as reactionary.
- We might come across as more reactionary than them.



Moreover, can I use the verb "perceive" instead of the expression "come across as " ?

- Our actions may be perceived as extreme.

- We were perceived as extremists.
-Our actions were perceived as extremist.

-They were perceived as revolutionaries.
-Their actions were perceived as revolutionary.

-We may be perceived as more revolutionary than other politicians.

-Their decisions were perceived as reactionary.
- We might be perceived as more reactionary than them.