This is a regular verb. It follows the conjugation pattern of the verb comer.
PresentPresente
Siempre meto las llaves en mi bolso.
I always put the keys in my bag.
PreteritePretérito indefinido
Ya metí la leche en la nevera.
I already put the milk in the fridge.
ImperativeImperativo afirmativo
Por favor, mete la ropa en la lavadora.
Please put the clothes in the washing machine.