OBLIGATIONS
How to use:
- We use MUST and have to in positive and present sentences. We ONLY can use HAVE TO in the past and you CAN'T use must in the past.
Ex: You must wear shoes. ---- PRESENT
You have to wear shoes. --- PRESENT
You had to wear shoes. ---- PAST
- We use MUSN'T in negative and present sentences. To put the sentence in the past we use WASN'T ALLOWED TO.
Ex: You musn't take money. --- PRESENT
I wasn't allowed to take money. --- PAST
NO OBLIGATIOS
How to use:
- No obligation is when you don't need to do something.
DON'T HAVE TO --- PRESENT
DIDN'T HAVE TO --- PAST
Ex: You don't have to do the activities. --- PRESENT
You didn't have to do the activities. --- PAST
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