The White Hart Lane outfit sit in fifth place in the league table, but a 1-0 defeat to Norwich City at Carrow Road has left them six points adrift of fourth-placed Liverpool.
The Belgium international is determined to play in Europe's premier club competition, and could assess his options after the World Cup should Tottenham miss out on qualification.
|3/1||Tottenham are 3/1 with William Hill to finish in the top four|
“I don’t complain about anything. Let’s see after the end of the season and after the World Cup.”
Vertonghen was disappointed with Sunday's defeat to relegation contenders Norwich, and insists the north Londoners must find a balance between attack and defence if they are to challenge for the top four and overcome a tough set of upcoming fixtures.
“For me, the Norwich game was just not good enough and we need to raise up our game to compete with the other top teams,” the former Ajax centre-back continued.
“Before, the defence was not doing well enough, which includes everybody, and now we are not scoring enough goals to bounce back from a 1-0 deficit after half-time or whatever. We need to start playing as a team more because individually we are good enough.
“We will need quite a few points from the games against Chelsea, Arsenal and Liverpool. They are still competing for the title, so they will be tough games but we have shown we can beat the top teams.”
Similarly to Vertonghen, Spurs goalkeeper Hugo Lloris admitted he would "weigh up" his options at the end of the season should Tottenham fail to qualify for the Champions League.