1. Modal verb for giving opinion: "I’d say convenience is the main reason" uses the modal verb "would" (I’d) to soften the opinion, which is a natural and polite way to express personal views in spoken English.
2. Comparative structure: "Sending a message is just so much easier" uses the comparative form "easier" to compare messaging with calling, making the point clear and direct.
3. Present continuous for ongoing situations: "while you’re busy or on the go" uses the present continuous to describe ongoing actions, showing flexibility in grammar.
4. Conditional clause: "if they’re in a meeting or sleeping" uses a conditional clause to explain a possible situation, adding detail and clarity.
5. Infinitive of purpose: "to worry about interrupting someone" uses the infinitive to explain purpose, which is a common and natural structure in spoken English.