to grumble
Regular verb: grumble - grumbled- grumbled

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I grumble
you grumble
she grumbles
we grumble
you grumble
they grumble 	Iamgrumbling
youaregrumbling
sheisgrumbling
wearegrumbling
youaregrumbling
theyaregrumbling	I grumbled
you grumbled
she grumbled
we grumbled
you grumbled
they grumbled	Iwasgrumbling
youweregrumbling
shewasgrumbling
weweregrumbling
youweregrumbling
theyweregrumbling	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I have grumbled
you have grumbled
she has grumbled
we have grumbled
you have grumbled
they have grumbled	I have been grumbling
you have been grumbling
shehasbeen grumbling
we have been grumbling
you have been grumbling
they have been grumbling	I had grumbled
you had grumbled
she had grumbled
we had grumbled
you had grumbled
they had grumbled	I had been grumbling
you had been grumbling
she had been grumbling
we had been grumbling
you had been grumbling
they had been grumbling	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I will grumble
you will grumble
she will grumble
we will grumble
you will grumble
they will grumble 	I will be grumbling
you will be grumbling
she will be grumbling
we will be grumbling
you will be grumbling
they will be grumbling	I will have grumbled
you will have grumbled
she will have grumbled
we will have grumbled
you will have grumbled
they will have grumbled	I will have been grumbling
you will have been grumbling
she will have been grumbling
we will have been grumbling
you will have been grumbling
they will have been grumbling	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I would grumble
you would grumble
she would grumble
we would grumble
you would grumble
they would grumble 	I would be grumbling
you would be grumbling
she would be grumbling
we would be grumbling
you would be grumbling
they would be grumbling	I would have grumbled
you would have grumbled
she would have grumbled
we would have grumbled
you would have grumbled
they would have grumbled	I would have been grumbling
you would have been grumbling
she would have been grumbling
we would have been grumbling
you would have been grumbling
they would have been grumbling	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to grumble 	 	grumble
Let's grumble
grumble 	 	

Participle 	
Present 	Past 	 	 	
grumbling	grumbled