Questão 2788177

"If he is here, he can help us." The subjunctive is used for real situations.

"If he was here, he can help us." The subjunctive mood doesn't apply.

"If he is here, he could help us." The subjunctive is used for possible future events.

"If he were here, he can help us." The subjunctive is used for certain real situations.

"If he were here, he could help us." The subjunctive mood is used for hypothetical or non-real situations.