Infinitive

INFINITIVE WITH TO (TO V)
offer to do
fail to do
agrre to do
refuse to do
threaten to do
promise to do
attemp to do
Try to do
afford to do
decide to do
hope to do
wish to do
plan to do
appear/ seem to do
arrange to do
pretend to do
forget to do
want (sb) to do
learn to do
ask sb to do
demand to do
mean to do
expect to do
remember to do
prepare to do
wait to do
volunteer to do
Be + adj + to V
S + be + too + adj + to do
S + be/verb + adj/ adv enough to do

INFINITIVE WITHOUT TO (BARE INFINITIVE)
can/could/may/might/must/shall/will/should + V
Feel, hear, see, watch, notice, smell, taste + Sb + V
Let sb do
Make sb do
help Sb do
Would rather do St than do St
had better do
have sb do