Por cierto, 2
By the way, incidentally
De hecho, 3
In fact, Actually, Indeed
En realidad, de hecho
As a matter of fact. Our eyes, as a matter of fact, represent optical devices.
De ninguna manera, 2
In any case, Anyway
Como iba diciendo, 2
As I was saying, To continue from where I left off
Al fin y al cabo
After all
De todos modos
Anyway
Al menos
At least
En definitiva
All in all
En general
On the whole
Además, 5
Besides, What is more, Furthermore, Moreover, In addition,
Sin embargo, 2
However, yet
Así, por lo tanto
Thereby, therefore
Asimismo
Likewise
Si no, en caso contrario, de otra manera
Otherwise
Respecto a
Regarding
Por el contrario
conversely, in contrast, on the other hand
debido a
due to