Learn English – “If I did find out” vs. ” If I found out”

1. I'm find that ...

Ungrammatical: "I am find that" has two verbs in it.

There is no rule against two verbs, but one of them has to be an auxiliary of the other, like "I did find", etc. (But this is not strictly true in general; see note at the bottom).

"I am finding that ..." may be the grammatical form you are looking for. The auxiliary verb "to be" (in all its forms, like "is", "are" and "am") can take a gerund: to be finding, to be going, to be singing, ...

"To be" does not take an infinitive form: "she is walk*", "I am find*", "you are laugh*" are all wrong. On the other the auxiliary verb "do" does take such verb forms: "she does walk", "I do find", "you do laugh" are grammatical.

2. I find that ...

"In my ongoing experience ..."

3. I found that ...

4. I have found that...

"In the past, it was my experience that ..."

(Assuming that we are talking about a specific sense of "to find" meaning "to form an observation, or record something into experience", and not "to happen upon something by chance, or to discover or recover something after seeking").

The difference between 3 and 4 is the same as between any past verb and have + past participle. Certain situations call for one or the other. For instance, "Yesterday, I have found ..." is wrong, but "In the past, I have found ..." is fine.

Also, is "I'm find that ..." a correct way to begin a sentence?

No, just "I find that ...", or "I am finding that ...".

"I am finding that" has a slightly different meaning, which is something like: "I have not experienced this before, but I have recently started to discover that ..."

Examples:

I find that a good way to cook "over easy" eggs is to use glass lid over the pan. [Not newly discovered; just a pervasive wisdom.]

I am finding that somehow I enjoy work less since getting that promotion. [New experience.]

When I was in that line of business, I found that it was difficult to find stable suppliers. [I am not in that business now, and don't know whether it is still hard to find stable suppliers today.]

Note: The rule given above, "you cannot have two verbs unless one is an auxiliary", is not true in general. Sometimes verbs are strung together as in "go find". In "I will go find it", the auxiliary is "will", and we can regard "go find" to be a compounded verb. And note that "go find" doesn't occur without an auxiliary, unless it is an imperative: "Go find it!", or a subjunctive: "I suggest that you go find it". In these special situations, we do have two verbs and no auxiliary. Note that "I go find it" or "She goes find it" are ungrammatical; an auxiliary of some sort must be used: "I {did | will} find it".

"Do you want to schedule a meeting?" is very straightforward. It is inquiring if the person wants to schedule a meeting.

"Did you want to schedule a meeting?" is more complicated and the meaning can change depending on the context as well as the inflection.

It could be inquiring if what you did was actually what you intended to do.

Sir, I'm calling from the bank. We noticed you scheduled a bill payment of $100,000. Did you want to schedule it for that much?

It could be asking what you want you want. Essentially synonymous with "do you"

Sir, I'm calling from the bank. I got your message to call you about the loan we discussed. Did you want to go ahead and proceed?

It could also be discussing something you weren't able to do and inquiring if you had wanted to.

You seem upset that we went to the movie last night while you were at work. Did you want to go with us?