E.g. are these correct? Following the rules, even if it's difficult, is essential. Following the rules, although it's difficult, is essential.
In following sentence, I'm not sure if I have to use the -ing form or the infinitive. I wanted to get rid of X, while at the same time not assuming/ assume that... The -ing form sounds better, ...
Is the general word order of this sentence correct? We investigate how strong the effect of X on Y is. Or, as an alternative, We investigate how strong the effect of X is on Y. In a ...