Основные правила спряжения глагола laugh в английском языке:

1. Простое время (Simple Tense): 12

• Present Simple (простое настоящее) — I laugh, you laugh, he, she laughs, we laugh, they laugh; 12
• Past Simple (простое прошедшее) — I laughed, you laughed, he, she laughed, we laughed, they laughed; 12
• Future Simple (простое будущее) — I will laugh, you will laugh, he, she will laugh, we will laugh, they will laugh. 12

1. Длительное время (Continuous Tense): 12

• Present Simple Continuous (настоящее длительное) — I am laughing, you are laughing, he, she is laughing, we are laughing, they are laughing; 12
• Past Simple Continuous (прошедшее длительное) — I was laughing, you were laughing, he, she was laughing, we were laughing, they were laughing; 12
• Future Simple Continuous (будущее длительное) — I will be laughing, you will be laughing, he, she will be laughing, we will be laughing, they will be laughing. 12

1. Совершенное время (Perfect Tense): 12

• Present Perfect (настоящее совершенное) — I have laughed, you have laughed, he, she has laughed, we have laughed, they have laughed; 12
• Past Perfect (прошедшее совершенное) — I had laughed, you had laughed, he, she had laughed, we had laughed, they had laughed; 12
• Future Perfect (будущее совершенное) — I will have laughed, you will have laughed, he, she will have laughed, we will have laughed, they will have laughed. 12

1. Длительное совершенное время (Perfect Continuous Tense): 2

• Present Perfect Continuous (настоящее совершенное длительное) — I have been laughing, you have been laughing, he, she has been laughing, we have been laughing, they have been laughing; 2
• Past Perfect Continuous (прошедшее совершенное длительное) — I had been laughing, you had been laughing, he, she had been laughing, we had been laughing, they had been laughing; 2
• Future Perfect Continuous (будущее совершенное длительное) — I will have been laughing, you will have been laughing, he, she will have been laughing, we will have been laughing, they will have been laughing. 2

Также у глагола laugh есть причастие настоящего времени — laughing и форма 3-го лица единственного числа — laughs. 14