| English | Russian |
| if and when something comes into play | по мере возникновения (Alexander Demidov) |
| if applicable | если актуально (ВосьМой) |
| if one can | по возможности (I’m a bit earlier than the seven o’clock we’d set to meet, but it will give me a chance to record all the information I’ve gathered. And make sense of it, if I can. Abysslooker) |
| if one puts their minds to it | стоит только захотеть (Argentina, Chile, and other countries could become high-tech agricultural producers, in the forefront of agro-biotechnology for example, if they put their minds to it.
 reverso.net) |
| if they call you from London for something trivial | если тебе позвонят из Лондона по какому-нибудь пустяку (Alex_Odeychuk) |