I think it's unlikely that
Creo que es improbable que una situación como esta vuelva a ocurrir alguna vez.
I think it’s unlikely that a situation like this will ever happen again.
Creo que es improbable que Tom venga solo a la fiesta.
I think it's unlikely that Tom will come to the party alone.
Creo que es improbable que las plantas sientan dolor.
I think it’s unlikely that plants feel pain.