to investigate
Regular verb: investigate - investigated- investigated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I do not investigate
you do not investigate
she doesnot investigate
we do not investigate
you do not investigate
they do not investigate 	Iamnot investigating
youarenot investigating
sheisnot investigating
wearenot investigating
youarenot investigating
theyarenot investigating	I did not investigate
you did not investigate
she did not investigate
we did not investigate
you did not investigate
they did not investigate 	Iwasnot investigating
youwerenot investigating
shewasnot investigating
wewerenot investigating
youwerenot investigating
theywerenot investigating	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I have not investigated
you have not investigated
shehasnot investigated
we have not investigated
you have not investigated
they have not investigated	I have not  been investigating
you have not  been investigating
shehasnot  been investigating
we have not  been investigating
you have not  been investigating
they have not  been investigating	I had not investigated
you had not investigated
she had not investigated
we had not investigated
you had not investigated
they had not investigated	I had not been investigating
you had not been investigating
she had not been investigating
we had not been investigating
you had not been investigating
they had not been investigating	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I will not investigate
you will not investigate
she will not investigate
we will not investigate
you will not investigate
they will not investigate 	I will not be investigating
you will not be investigating
she will not be investigating
we will not be investigating
you will not be investigating
they will not be investigating	I will not have investigated
you will not have investigated
she will not have investigated
we will not have investigated
you will not have investigated
they will not have investigated	I will not have been investigating
you will not have been investigating
she will not have been investigating
we will not have been investigating
you will not have been investigating
they will not have been investigating	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I would not investigate
you would not investigate
she would not investigate
we would not investigate
you would not investigate
they would not investigate 	I would not be investigating
you would not be investigating
she would not be investigating
we would not be investigating
you would not be investigating
they would not be investigating	I would not have investigated
you would not have investigated
she would not have investigated
we would not have investigated
you would not have investigated
they would not have investigated	I would not have been investigating
you would not have been investigating
she would not have been investigating
we would not have been investigating
you would not have been investigating
they would not have been investigating	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to investigate 	 	do not investigate
Let's not investigate
do not investigate 	 	

Participle 	
Present 	Past 	 	 	
investigating	investigated