Spurs are unbeaten since the opening day of the season and have won their last three games.
The Lilywhites were slow starters this season - losing one and drawing three of their first four games - but have now won three on the trot in all competitions and kept three consecutive clean sheets in the Premier League.
"We’ve kept three cleans sheets on the bounce before this game, which is great - we are learning more and more to play alongside other," the Belgian told the Tottenham site.
"The forwards are working well, Dele (Alli) and Eric (Dier) in front of the back four are working very hard too and obviously Hugo (Lloris) is class.
"Once you get one clean sheet you build confidence and that’s exactly what we’re doing."
The emergence of Alli and Dier has been as unexpected as it has been impressive for Spurs. Dier has taken to his new-found role as holding midfielder like a duck to water and has added a new dimension to the heart of Tottenham’s midfield.
Alli, meanwhile, has made the step up from League One to the Premier League seem effortless and has established himself as a first-team player way ahead of schedule.
The superb form of Hugo Lloris has come to be expected and Spurs must count their blessings to still be able to call upon one of the very best goalkeepers in the world.
Tottenham take on Arsenal in the League Cup tonight and Vertonghen is determined to keep the good run going.
"It’s a big game against Arsenal - it’s a very important one, as it always is,” added the 28-year old. "We have to keep this momentum going now and we want to beat them."