Can we omit "is","am","are" in spoken english?

[DEBASIS1983]

Please tell me:
Can we omit helping verbs like "is","am","are" from the sentence while speaking.

e.g--"We are planning for your marriage."

Instead of this ,can we tell:--"we planning your marriage".

If it is correct,please tell me is there any case where we should not use this.please give me some more examples also.

Thank you in advance.

[Searching for language]

Please tell me:
Can we omit helping verbs like "is","am","are" from the sentence while speaking.

e.g--"We are planning for your marriage."

Instead of this ,can we tell:--"we planning your marriage".

If it is correct,please tell me is there any case where we should not use this.please give me some more examples also.

Thank you in advance.

I am not a teacher.

There are many cases in which those verbs may be omitted. "We planning your marriage" is not one of them.

The more common way in which "is, am, are" can be omitted is this:

He is taller than I. (am)
We are better golfers than they. (are)
You are smarter than he. (is)

[torpex]

He is taller than I. (am)
We are better golfers than they. (are)
You are smarter than he. (is)

I am not a teacher.

maybe someone can clarify for me, does this rule apply to all auxiliary verbs?
for example, can the same contraction apply to:

They did it better than you. (did)
He may not look like you or I (do)

Or can it even involve two instead of just one?

He will be quicker than I will. (be)
He will be quicker than I. (will be)

[emsr2d2]

I am not a teacher.

maybe someone can clarify for me, does this rule apply to all auxiliary verbs?
for example, can the same contraction apply to:

They did it better than you. (did) Yes
He may not look like you or I (do) Yes

Or can it even involve two instead of just one?

He will be quicker than I will. (be) Yes (more common)
He will be quicker than I. (will be) Yes

All the examples you gave are possible.