“could we met again …
“could we met again?” means PODRIAMOS ENCONTRARNOS OTRA VEZ? PODRIAMOS QUEDARNOS OTRA VEZ? it´s incorrect, that means “can we stay again?” to stay=QUEDAR in a place, house, hotel, at home, the correct form would be PODRIAMOS VERNOS OTRA VEZ? witch means ” can we see us again?” a little bit diferent from the correct form in english

“let´s met at two o …
“let´s met at two o´clock” literaly means VAMOS A VERNOS A LAS DOS or VEAMONOS A LAS DOS and both are correct in spanish, NOS QUEDAMOS A LAS DOS means “we stay at 2 o´clock” witch is incorrect

“I would like to …
“I would like to take you out” literaly means ME GUSTARIA LLEVARTE AFUERA, but you can say ME GUSTARIA INVITARTE A SALIR, witch means “I would like you to invite you out”

“we can do …
“we can do something tougheter if you like, literaly means” = PODEMOS HACER ALGO JUNTOS SI TE GUSTA, if you say “if you want” becomes SI QUIERES, ” we can” is PODEMOS, not HACEMOS