Dicas para aprender verbos e não esquecer

Não existem fórmulas mágicas. A única dica que conheço é usar os verbos e palavras em geral.
Escrever/ falar frases usando esses verbos. Ouvir ouvir áudio e assistir vídeos onde é pronunciado esses verbos são pronunciados.

Also, perhaps you may consider giving some grammar a try. Since there are some capricious details of the English language. To illustrate, the word "come" could be a verb, then it could be a particle of an a phrasal verb (something akin to an expression, sort of) as in "come on" or "come over".
There are other things that come with some experience with English, and being in touch with the language teaches...for example the meaning of Mass (with capital M has the meaning of "missa") Father (with capital F meaning "padre") and so on. Not to mention the pronounce that one needs to learn, a skill that can be achieved by listening and trying to emulate.
It boils down to what Andrezza pointed out, practice makes perfect (a prática é que leva a perfeição, usando o que se sabe é que se aprende.)