| singular | plural | 
	| Infinitive |  |  | 
	 | rumble |  | 
	| present simple |  |  | 
	| 1 | I rumble | we rumble | 
	| 2 | you rumble | you rumble | 
	| 3 | he/she/it rumbles | they rumble | 
	| past simple |  |  | 
	| 1 | I rumbled | we rumbled | 
	| 2 | you rumbled | you rumbled | 
	| 3 | he/she/it rumbled | they rumbled | 
	| future simple |  |  | 
	| 1 | I will/shall rumble | we will/shall rumble | 
	| 2 | you will/shall rumble | you will/shall rumble | 
	| 3 | he/she/it will/shall rumble | they will/shall rumble | 
	| conditional simple |  |  | 
	| 1 | I would rumble | we would rumble | 
	| 2 | you would rumble | you would rumble | 
	| 3 | he/she/it would rumble | they would rumble | 
	| present continuous |  |  | 
	| 1 | I am rumbling | we are rumbling | 
	| 2 | you are rumbling | you are rumbling | 
	| 3 | he/she/it is rumbling | they are rumbling | 
	| past continuous |  |  | 
	| 1 | I was rumbling | we were rumbling | 
	| 2 | you were rumbling | you were rumbling | 
	| 3 | he/she/it  was rumbling | they were rumbling | 
	| future continuous |  |  | 
	| 1 | I will be rumbling | we will be rumbling | 
	| 2 | you will be rumbling | you will be rumbling | 
	| 3 | he/she/it will be rumbling | they will be rumbling | 
	| conditional continuous |  |  | 
	| 1 | I would be rumbling | we would be rumbling | 
	| 2 | you would be rumbling | you would be rumbling | 
	| 3 | he/she/it would be rumbling | they would be rumbling | 
	| present perfect |  |  | 
	| 1 | I have rumbled | we have rumbled | 
	| 2 | you have rumbled | you have rumbled | 
	| 3 | he/she/it has rumbled | they have rumbled | 
	| past perfect |  |  | 
	| 1 | I had rumbled | we had rumbled | 
	| 2 | you had rumbled | you had rumbled | 
	| 3 | he/she/it had rumbled | they had rumbled | 
	| future perfect |  |  | 
	| 1 | I will have rumbled | we will have rumbled | 
	| 2 | you will have rumbled | you will have rumbled | 
	| 3 | he/she/it will have rumbled | they will have rumbled | 
	| conditional perfect |  |  | 
	| 1 | I would have rumbled | we would have rumbled | 
	| 2 | you would have rumbled | you would have rumbled | 
	| 3 | he/she/it would have rumbled | they would have rumbled |