I feelthink/have the impression that my country has more spiders than Japan. I think/have the impression that my country has more spiders than Japan.

I think these solutions are more natural.

Recently, outsidethe outdoors is gehotting warm andup with breezy days, so spiders are starting to appearing in my house. Recently, the outdoors is hotting up with breezy days, so spiders are starting to appear in my house.

Recently, outsideit is getting warm andoutside and there are more breezy days, so spiders are starting to appearing in my house. Recently, it is getting warm outside and there are more breezy days, so spiders are starting to appear in my house.

Outside is usually used as an adverb, so it sounds more natural to say "it is getting warm outside." "Starting" usually takes an infinitive instead of a gerund.

Recently, outside is getting warm andit has started getting warmer outside and we've had a few breezy days, s leading to spiders are starting to appearing in my house. Recently, it has started getting warmer outside and we've had a few breezy days leading to spiders starting to appear in my house.

Complex sentence and tried making it sound a little more natural.

Recently, outside is getting warm and breezy days, so spiders are starting to appearing in my house. Recently, outside is getting warm and breezy, so spiders are starting to appear in my house.

I saw two spiders inside/in the house today. I saw two spiders inside/in the house today.

I saw two spiders inside today. I saw two spiders inside today.

"In" is generally a preposition. "Inside" is the adverb.

I saw two spiders in today. I saw two spiders today.

Don't need to include "in" here.

I saw two spiders in today. I saw two spiders today.

Most spiders have beenwere living in my house before I camearrived, so me and my siblings always get scary ed during this season. Most spiders were living in my house before I arrived, so me and my siblings always get scared during this season.

Most spiders have been living in my house before I came, so me andbut my siblings and I always getfeel scaryed in this season. Most spiders have been living in my house before I came, but my siblings and I always feel scared in this season.

The second clause doesn't really come as a result of the first, but is more of a contrast, so I would use "but" instead of "so." Since "My siblings and I" is the subject, use the nominative form of the pronoun, and it is also more polite to put yourself second when referring to yourself and others. To get scary would mean that other things would be scared of you. Instead, I think that you meant that you are scared of the spiders, so "feel scared" is more accurate here.

Most spiders have been living in my house before I came, so me and my siblings and I always get scary ed during this season. Most spiders have been living in my house before I came, so my siblings and I always get scared during this season.

Most spiders have been living in my house before I came, so me and my siblings always get scaryed in this season. Most spiders have been living in my house before I came, so me and my siblings always get scared in this season.

My mum isn't afraid of bugs, so we call her when we find insectcreepy-crawlies. My mum isn't afraid of bugs, so we call her when we find creepy-crawlies.

Spiders are not insects. Insects have six legs, spiders have eight.

As bugs go, I think they are the most tricky one in bugstrickiest ones to catch, because they move around even selon ceilings and walls as they liket will. As bugs go, I think they are the trickiest ones to catch, because they move around on ceilings and walls at will.

I think theyat spiders are the most tricky one inkind of bugs because they move around even selceilings and walls as they like. I think that spiders are the most tricky kind of bug because they move around even ceilings and walls as they like.

You haven't talked about spiders for a while, so it is good to clarify what you are talking about again.

I think they are the most tricky one intrickiest of the bugs because they move around walls and even selceilings and walls as they like. I think they are the trickiest of the bugs because they move around walls and even ceilings as they like.

I think they are the most tricky one intrickiest bugs because they move around even selceilings and walls as they like. I think they are the trickiest bugs because they move around ceilings and walls as they like.

It is very hard to get reid of them, because we don't reach high spaces, so we need to go and get some long thingobjects. It is very hard to get rid of them, because we don't reach high spaces, so we need to go and get some long objects.

It is very hard to get reid of them because we don'tare too short to reach high spaces, so we need to go get some long things. It is very hard to get rid of them because we are too short to reach high spaces, so we need to go get some long things.

It is very hard to get reid of them because we docan't reach high splaces, so we and need to go get something long thingso get them. It is very hard to get rid of them because we can't reach high places and need to get something long to get them.

It is very hard to get reid of them because we don't reach high spaces, so we need to go get some long things. It is very hard to get rid of them because we don't reach high spaces, so we need to go get some long things.

They aoften appear in our bedroom. They often appear in our bedroom.

They also often appear in our bedroom. They also often appear in our bedroom.

They aoften appear in our bedroom. They often appear in our bedroom.

wWe are afraid ifthat they wcould be dropped onto the bed when my mum tries to catch them, or they could gomove down to our bed, and they might comereep into our mouths while we are sleeping. We are afraid that they could drop onto the bed when my mum tries to catch them, or they could move down to our bed, and they might creep into our mouths while we are sleeping.

This is a common fear :) I've never actually heard it happening in reality.

wWe are afraid ifthat they wouldmight be dropped on the bed when my mum tries to catch or they couldat they might go down to our bed and. Then they might come into our mouth while we are sleeping. We are afraid that they might be dropped on the bed when my mum tries to catch or that they might go down to our bed. Then they might come into our mouth while we are sleeping.

The sentence is getting pretty long, so I would break it up into two shorter sentences for clarity.

wWe are afraid ifworry that they wcould be dropped onto the bed when my mum tries to catch or tthem, or that hey could go down crawl into our bed and they might comen into our mouths while we are sleeping. We worry that they could drop onto the bed when my mum tries to catch them, or that hey could crawl into our bed and then into our mouths while we are sleeping.

wWe are afraid if they would beill dropped on the bed when my mum tries to catch them or they could go down to our bed and they might come into our mouths while we are sleeping. We are afraid they will drop on the bed when my mum tries to catch them or they could go down to our bed and they might come into our mouths while we are sleeping.