北極 ほっきょく探検 たんけん

hokkyokutanken

1. Not a North Pole expedition.; Not exploring the North Pole.

1. Was a North Pole expedition.

1. In a North Pole expedition; While on a North Pole expedition

1. Arctic; Polar

1. It is not a North Pole expedition.; It's not about exploring the North Pole.

1. It's not a North Pole expedition.; I'm not going on a North Pole expedition.

1. Was a North Pole expedition.

1. Arctic exploration.

1. Is not a North Pole expedition.; Is not exploring the North Pole.

1. Wasn't a North Pole expedition.; Wasn't exploring the North Pole.

1. Probably a North Pole expedition.

1. It wasn't a North Pole expedition.

1. Wasn't a North Pole expedition.; Wasn't exploring the North Pole.

1. Probably a North Pole expedition.

1. Was not a North Pole expedition.

1. If it were a North Pole expedition; If/when it's a North Pole expedition

1. If it were Arctic exploration; Were it Arctic exploration

1. If/when exploring the North Pole