Unreal present conditionals and could be real assumptions

Question

As far as I know, UNREAL present conditionals which uses the format If + past tense verb.., then + would + verb..., are used for conditions which are practically NOT possible, but theoretically possible and counterfactual situations.

Examples:

If I won a lottery, I would travel around the world.

If I were the king, I would abolish capital punishment.

However, how do you explain these examples which are theoretically and practically possible?

You would lose weight if you took more exercise.

If he got a new job, he would probably make more money.

I think if I went to look at more gardens, I would be better at Planning and designing them

.

Getting a new job, exercising, and looking at gardens are very likely things.

I can say those sentences with real conditionals using 'will."

Answer 1

As far as grammar is concerned there is no difference between something that is 'possible but extremely unlikely' and 'possible and somewhat likely'. They are both hypothetical situations, and the grammar is the same when they are expressed in this 'subjunctive' or 'irrealis' manner.

As Michael Harvey points out, you can also express hypotheticals using active verbs, in which case they need to use tenses that have a logical relationship to each other in time (present and future). If using irrealis forms, the past forms ('would', 'should', 'could' etc) are considered most 'correct' (although it can be very flexible in reality).

English speakers flip between 'subjunctive' forms and 'active' forms in these hypothetical situations almost at random, and the distinction between the different ways of saying things is marginal at best. See this answer I gave to another question: https://ell.stackexchange.com/a/355057/2789

Answer 2

I. Second Conditional isn't impossible.
The third conditional is totally impossible to happen because it is past and we cannot change it.
But this is not the case with imagined conditions in the First and Second Conditionals.

II. Explanation : Imagined Conditions

Ref. Cambridge dictionary.
Imagined conditions There are different types of conditions. Some are possible or likely, others are unlikely, and others are impossible:.

III. Imagined conditions: The second conditional.
Ref. Cambridge dictionary

We use the second conditional to talk about the possible result of an imagined situation in the present or future. We say what the conditions must be for the present or future situation to be different.
If people complained, things would change. (People don’t complain at the moment.)

IV. Applying this to OP's sentences.
Please find below OP's sentences and my comments in bold and italics.

1. You would lose weight if you took more exercise.
   (But you don't exercise enough now.)
2. If he got a new job, he would probably make more money.
   (But he doesn't have a job.)
3. I think if I went to look at more gardens, I would be better at Planning and designing them.
   (I am thinking and haven't acted upon it.)