Have to and must have basicallythes

Have to and must have basicallythesame meaning. The express the idea that something is necessary.
Have to is used much more frequently in everday speech and writing than must.
Must is typically found in written instructions, as in (c). It is usually a strong, serious, “no nonsense” word.
Questions: have to usually used in questions, not must or have go to. Form of do are used with have to in questions.
The past form of have to, and must (meaning necessity) is had to.

Results (Indonesian) 1:

Harus dan harus memiliki arti basicallythesame. Express gagasan bahwa sesuatu diperlukan.Harus digunakan lebih sering dalam everday pidato dan menulis daripada harus.Harus biasanya ditemukan di instruksi tertulis, (c). Biasanya kuat, serius, kata "tidak ada omong kosong".Pertanyaan: harus biasanya digunakan dalam pertanyaan, tidak harus atau telah pergi ke. Bentuk yang digunakan dengan harus dalam pertanyaan.Bentuk terakhir harus, dan harus (arti perlunya) adalah harus.