► 接続助詞
つつ [(1)つつ] [つつある] [liter] meaning: continue rank: 2
☆ 多くの先進国の人口は減少しつつある ⇨ The populations of many advanced nations are decreasing continuously
☆ 時代は変わりつつある ⇨ The time is changing
☆ 状況は改善しつつある ⇨ The situation is improving
► 動詞
参る [(2)まいる] [humble] meaning: continue rank: 3
☆ 今後も一層精進して参る所存であります ⇨ I plan to work even harder into the future
► 補助動詞
行く [(2)いく] meaning: continue rank: 1
☆ このまま生きて行く気力が無い ⇨ I don’t have the will to keep living this way
☆ 彼とやって行く自信が無くなった ⇨ I lost the confidence to continue relationship with him
☆ 時代は常に変わって行く ⇨ Times will always keep changing
☆ 若い才能をどんどん育てて行くことが大切だ ⇨ It is important to keep growing young talents
☆ 今後も作業効率を改善し続けて行く必要が有る ⇨ There is a need to keep improving our work efficiency into the future (☛ 改善し続けて行く is redundant and the same with 改善して行く, but both are used commonly in conversation)