Login To Revenue Quebec And Check Your Tax Refunds Status Dernier Mois Pour Soumettre Sa Déclaration De Revenus Au Québec

You said login is a noun (correct) but your example (login screen) shows it being used as an adjective. The single word can be either an adjective or. There are a lot of questions concerning the correct use if login, log in, etc.

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I'd pick 1) because the. When speaking directly to an use i would say you can.