英和和英

There's no contact.

have lost in touch with you

I couldn't even contact anyone.

to sever the connection （between the two―with the other）―cut off the communication （between the two―with the other）

There is no contact from you.

I'm sorry for the delay in contacting you.

I won't be able to keep in touch with you.

I didn't receive any notification.

Are you in a situation where you can't keep in contact?

to establish a connection （with something）

I can't tell you my contact information.

After that, I couldn't get in touch with him/her at all.

There is no contact between the three parties.

Let's keep in touch.

make contact or come together

I haven't heard from them yet.

I am sorry for hardly contacting you.

both contact and communication

I am sorry for the delay with getting in contact with you.

Please feel free to contact me.

they arrived unannounced

The connection between the two is not well established.

We have not heard anything yet.

Sorry for the late reply.

I'm sorry for contacting you late.

I will wait to hear from you.

Call me.

I am worried because I haven't heard anything from you.

of a communication, to reach someone

Keep in touch.