Yes the goalkeeper is allowed to cross the half line. He/she can go up for corners. I have done that against weaker teams.
3 per half
45 minutes is half of a international football/soccer game ...
He is most famous for the infamous 'airkick' of a football while playing in goal for England. he was englands number 1 goalkeeper when he played for Leeds United and his brilliant save against west ham in 2003
One acre is roughly the size of a modern football field. So, half an acre is about half the size or one third of a football field.
In football, a player gets half a sack when they contribute to bringing down the quarterback along with another player.
You are allowed to sing half a song if you want to, but it will be not be as interesting to everyone listening.
18 games in half a season
In football, a player earns a half sack when they contribute to sacking the quarterback along with another player. This means that both players are credited with half of the sack.
In football, a player earns half a sack when they contribute to a tackle behind the line of scrimmage along with another player.
American football is a full contact sport that is divided into four 15 minute quarters, with three time outs per half. Each team is only allowed to have 11 players on the field at a time and has four chances to move 10 yards on the field.
24
A kickoff.