Obligation

hanuman_2000The word 'obligation' always confuses me.

That's not surprising. It's a very general term.

hanuman_2000What does obligation include?1. Duty (felt by speaker)2. rules ( by a system)3. necessity ???

It includes all of those things. For the purpose of learning English it

Thanks Sir!

Hello,

We often use must for more personal opinions about what it is necessary to do, and have to for what somebody in authority has said it is necessary to do.

It is very confusing between 'must' and 'have to'. Apart from many similar uses, one use of either ' must' or 'have to' is for external rules or law.

Some books suggest 'must' for law or rule whi

It is not possible to give precise guidelines. The two verbs are used differently in BrE and AmE, and even within
each variety people do not always use them in similar ways.

I use must when the obligation is imposed (in active-voice sentences) by the speaker/writer, and have to when it is imposed by somebody else.

Mother: You must do your homework, Percy

hanuman_2000We often use must for more personal opinions about what it is necessary to do, and have to for what somebody in authority has said it is necessary to do.

In my opinion you can safely ignore this rule if you just want to learn "international English".

In fact, in American English, this "rule" is the opposite. In the U.S. you typically see

fivejedjonThe two verbs are used differently in BrE and AmE, and even within each variety people do not always use them in similar ways.

So true. On the very rare occasion when I hear "self-admonishing must", I think "British".

A student is working on irregular verbs with a tutor. The student is making one mistake after another, and the tutor