to sustain
Regular verb: sustain - sustained- sustained

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I don't sustain
you don't sustain
she doesn't sustain
we don't sustain
you don't sustain
they don't sustain 	I'mnot sustaining
youaren't sustaining
sheisn't sustaining
wearen't sustaining
youaren't sustaining
theyaren't sustaining	I didn't sustain
you didn't sustain
she didn't sustain
we didn't sustain
you didn't sustain
they didn't sustain 	Iwasn't sustaining
youweren't sustaining
shewasn't sustaining
weweren't sustaining
youweren't sustaining
theyweren't sustaining	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I haven't sustained
you haven't sustained
she hasn't sustained
we haven't sustained
you haven't sustained
they haven't sustained	I haven't  been sustaining
you haven't  been sustaining
she hasn't  been sustaining
we haven't  been sustaining
you haven't  been sustaining
they haven't  been sustaining	I hadn't sustained
you hadn't sustained
she hadn't sustained
we hadn't sustained
you hadn't sustained
they hadn't sustained	I hadn't been sustaining
you hadn't been sustaining
she hadn't been sustaining
we hadn't been sustaining
you hadn't been sustaining
they hadn't been sustaining	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I won't sustain
you won't sustain
she won't sustain
we won't sustain
you won't sustain
they won't sustain 	I won't be sustaining
you won't be sustaining
she won't be sustaining
we won't be sustaining
you won't be sustaining
they won't be sustaining	I won't have sustained
you won't have sustained
she won't have sustained
we won't have sustained
you won't have sustained
they won't have sustained	I won't have been sustaining
you won't have been sustaining
she won't have been sustaining
we won't have been sustaining
you won't have been sustaining
they won't have been sustaining	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I wouldn't sustain
you wouldn't sustain
she wouldn't sustain
we wouldn't sustain
you wouldn't sustain
they wouldn't sustain 	I wouldn't be sustaining
you wouldn't be sustaining
she wouldn't be sustaining
we wouldn't be sustaining
you wouldn't be sustaining
they wouldn't be sustaining	I wouldn't have sustained
you wouldn't have sustained
she wouldn't have sustained
we wouldn't have sustained
you wouldn't have sustained
they wouldn't have sustained	I wouldn't have been sustaining
you wouldn't have been sustaining
she wouldn't have been sustaining
we wouldn't have been sustaining
you wouldn't have been sustaining
they wouldn't have been sustaining	

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

Participle 	
Present 	Past 	 	 	
sustaining	sustained