Dame y Deme
I know that these 2 words mean "give me" and that: Dáme (informal / tu) Deme (formal / usted)
Is there a certain rule that applies to other verbs to change them into commands/orders?
And is it usual to see dame and deme written with accents like this: Dáme Déme
Also, how would you say "Give him something" in the 'tu' and 'usted' forms?
Hi chloe, welcome to SpanishDict
To form an informal command for the second person singular (tú), you need to use the indicative third person singular verb form, e.g.
¡Habla! - Talk!
¡Háblame! - Talk to me!
To make a formal command for Usted, you need to use the subjunctive third person singular verb form, e.g.
You can use our conjugation tool to find the right verb form.
And you don't need to use the accent ´ in Dame and Deme, because the stress in on the first syllable anyway (both words are two-syllable).
For "Give him something"....
Tú form: ¡Dale algo!
Usted form: ¡Dele algo!
Of course, for the similar "Give him it"....it's ¡Dáselo! and ¡Déselo!...if I'm not mistaken.