Subjunctive is a simple thing in Hebrew. It is formed with the verb “to be” + conjugated verb in present tense.
Note: subjunctive past tense and present tense are identical in Hebrew.
|I had invited him, if he had been in town.||הייתי מזמין אותו, אם הוא היה בעיר|
|hayiti mazmin oto, im hu hayah ba’ir|
|can also mean: I would invite him, if he were in town.|