Does anyone know the correct strumming pattern for the song I Swear This Time I Mean It by Mayday Parade?

I've been looking for the correct strumming pattern for this song. Every website or tab gives a slightly different answer, and a video I watched on YouTube was too difficult for me to watch the guy's strumming hand and his hand switching chords. I really want to learn this song so help would be appreciated. Please put the strumming pattern chord by chord. Thanks!